420 changes: 420 additions & 0 deletions configure
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1 change: 1 addition & 0 deletions dracut/90zfs/Makefile.in
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Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions dracut/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions etc/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions etc/init.d/Makefile.in
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Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions etc/zfs/Makefile.in
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Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions include/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions include/linux/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions include/sys/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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15 changes: 15 additions & 0 deletions include/sys/arc.h
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Expand Up @@ -34,16 +34,27 @@ extern "C" {
#include <sys/zio.h>
#include <sys/dmu.h>
#include <sys/spa.h>
#include <sys/refcount.h>

typedef struct arc_buf_hdr arc_buf_hdr_t;
typedef struct arc_buf arc_buf_t;
typedef struct arc_prune arc_prune_t;
typedef void arc_done_func_t(zio_t *zio, arc_buf_t *buf, void *private);
typedef void arc_prune_func_t(int64_t bytes, void *private);
typedef int arc_evict_func_t(void *private);

/* generic arc_done_func_t's which you can use */
arc_done_func_t arc_bcopy_func;
arc_done_func_t arc_getbuf_func;

/* generic arc_prune_func_t wrapper for callbacks */
struct arc_prune {
arc_prune_func_t *p_pfunc;
void *p_private;
list_node_t p_node;
refcount_t p_refcnt;
};

struct arc_buf {
arc_buf_hdr_t *b_hdr;
arc_buf_t *b_next;
Expand Down Expand Up @@ -113,9 +124,13 @@ zio_t *arc_write(zio_t *pio, spa_t *spa, uint64_t txg,
arc_done_func_t *ready, arc_done_func_t *done, void *private,
int priority, int zio_flags, const zbookmark_t *zb);

arc_prune_t *arc_add_prune_callback(arc_prune_func_t *func, void *private);
void arc_remove_prune_callback(arc_prune_t *p);

void arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private);
int arc_buf_evict(arc_buf_t *buf);

void arc_adjust_meta(int64_t adjustment, boolean_t may_prune);
void arc_flush(spa_t *spa);
void arc_tempreserve_clear(uint64_t reserve);
int arc_tempreserve_space(uint64_t reserve, uint64_t txg);
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1 change: 1 addition & 0 deletions include/sys/fm/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions include/sys/fm/fs/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions include/sys/fs/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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5 changes: 4 additions & 1 deletion include/sys/zfs_vfsops.h
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Expand Up @@ -67,7 +67,8 @@ typedef struct zfs_sb {
boolean_t z_unmounted; /* unmounted */
rrwlock_t z_teardown_lock;
krwlock_t z_teardown_inactive_lock;
list_t z_all_znodes; /* all vnodes in the fs */
list_t z_all_znodes; /* all znodes in the fs */
uint64_t z_nr_znodes; /* number of znodes in the fs */
kmutex_t z_znodes_lock; /* lock for z_all_znodes */
struct inode *z_ctldir; /* .zfs directory inode */
boolean_t z_show_ctldir; /* expose .zfs in the root dir */
Expand Down Expand Up @@ -185,6 +186,8 @@ extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop,
extern int zfs_sb_create(const char *name, zfs_sb_t **zsbp);
extern int zfs_sb_setup(zfs_sb_t *zsb, boolean_t mounting);
extern void zfs_sb_free(zfs_sb_t *zsb);
extern int zfs_sb_prune(struct super_block *sb, unsigned long nr_to_scan,
int *objects);
extern int zfs_sb_teardown(zfs_sb_t *zsb, boolean_t unmounting);
extern int zfs_check_global_label(const char *dsname, const char *hexsl);
extern boolean_t zfs_is_readonly(zfs_sb_t *zsb);
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2 changes: 2 additions & 0 deletions include/sys/zpl.h
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Expand Up @@ -48,6 +48,8 @@ extern const struct file_operations zpl_file_operations;
extern const struct file_operations zpl_dir_file_operations;

/* zpl_super.c */
extern void zpl_prune_sbs(int64_t bytes_to_scan, void *private);

typedef struct zpl_mount_data {
const char *z_osname; /* Dataset name */
void *z_data; /* Mount options string */
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1 change: 1 addition & 0 deletions lib/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libavl/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libefi/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libnvpair/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libshare/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/asm-generic/Makefile.in
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Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/asm-i386/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/asm-x86_64/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/include/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/include/ia32/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
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1 change: 1 addition & 0 deletions lib/libspl/include/ia32/sys/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/include/rpc/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/include/sys/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/include/sys/dktp/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/include/sys/sysevent/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libspl/include/util/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libunicode/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libuutil/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libzfs/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions lib/libzpool/Makefile.in
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Expand Up @@ -71,6 +71,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions man/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions man/man8/Makefile.in
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Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
188 changes: 158 additions & 30 deletions module/zfs/arc.c
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Expand Up @@ -104,6 +104,14 @@
* protected from simultaneous callbacks from arc_buf_evict()
* and arc_do_user_evicts().
*
* It as also possible to register a callback which is run when the
* arc_meta_limit is reached and no buffers can be safely evicted. In
* this case the arc user should drop a reference on some arc buffers so
* they can be reclaimed and the arc_meta_limit honored. For example,
* when using the ZPL each dentry holds a references on a znode. These
* dentries must be pruned before the arc buffer holding the znode can
* be safely evicted.
*
* Note that the majority of the performance stats are manipulated
* with atomic operations.
*
Expand All @@ -120,14 +128,13 @@
#include <sys/zio.h>
#include <sys/zfs_context.h>
#include <sys/arc.h>
#include <sys/refcount.h>
#include <sys/vdev.h>
#include <sys/vdev_impl.h>
#ifdef _KERNEL
#include <sys/vmsystm.h>
#include <vm/anon.h>
#include <sys/fs/swapnode.h>
#include <sys/dnlc.h>
#include <sys/zpl.h>
#endif
#include <sys/callb.h>
#include <sys/kstat.h>
Expand All @@ -141,8 +148,8 @@ extern int zfs_write_limit_shift;
extern uint64_t zfs_write_limit_max;
extern kmutex_t zfs_write_limit_lock;

#define ARC_REDUCE_DNLC_PERCENT 3
uint_t arc_reduce_dnlc_percent = ARC_REDUCE_DNLC_PERCENT;
/* number of bytes to prune from caches when at arc_meta_limit is reached */
uint_t arc_meta_prune = 1048576;

typedef enum arc_reclaim_strategy {
ARC_RECLAIM_AGGR, /* Aggressive reclaim strategy */
Expand Down Expand Up @@ -180,7 +187,7 @@ unsigned long zfs_arc_meta_limit = 0;
int zfs_arc_grow_retry = 0;
int zfs_arc_shrink_shift = 0;
int zfs_arc_p_min_shift = 0;
int zfs_arc_reduce_dnlc_percent = 0;
int zfs_arc_meta_prune = 0;

/*
* Note that buffers can be in one of 6 states:
Expand Down Expand Up @@ -288,6 +295,7 @@ typedef struct arc_stats {
kstat_named_t arcstat_no_grow;
kstat_named_t arcstat_tempreserve;
kstat_named_t arcstat_loaned_bytes;
kstat_named_t arcstat_prune;
kstat_named_t arcstat_meta_used;
kstat_named_t arcstat_meta_limit;
kstat_named_t arcstat_meta_max;
Expand Down Expand Up @@ -352,6 +360,7 @@ static arc_stats_t arc_stats = {
{ "arc_no_grow", KSTAT_DATA_UINT64 },
{ "arc_tempreserve", KSTAT_DATA_UINT64 },
{ "arc_loaned_bytes", KSTAT_DATA_UINT64 },
{ "arc_prune", KSTAT_DATA_UINT64 },
{ "arc_meta_used", KSTAT_DATA_UINT64 },
{ "arc_meta_limit", KSTAT_DATA_UINT64 },
{ "arc_meta_max", KSTAT_DATA_UINT64 },
Expand Down Expand Up @@ -481,6 +490,8 @@ struct arc_buf_hdr {
list_node_t b_l2node;
};

static list_t arc_prune_list;
static kmutex_t arc_prune_mtx;
static arc_buf_t *arc_eviction_list;
static kmutex_t arc_eviction_mtx;
static arc_buf_hdr_t arc_eviction_hdr;
Expand Down Expand Up @@ -1925,6 +1936,48 @@ arc_adjust(void)
}
}

/*
* Request that arc user drop references so that N bytes can be released
* from the cache. This provides a mechanism to ensure the arc can honor
* the arc_meta_limit and reclaim buffers which are pinned in the cache
* by higher layers. (i.e. the zpl)
*/
static void
arc_do_user_prune(int64_t adjustment)
{
arc_prune_func_t *func;
void *private;
arc_prune_t *cp, *np;

mutex_enter(&arc_prune_mtx);

cp = list_head(&arc_prune_list);
while (cp != NULL) {
func = cp->p_pfunc;
private = cp->p_private;
np = list_next(&arc_prune_list, cp);
refcount_add(&cp->p_refcnt, func);
mutex_exit(&arc_prune_mtx);

if (func != NULL)
func(adjustment, private);

mutex_enter(&arc_prune_mtx);

/* User removed prune callback concurrently with execution */
if (refcount_remove(&cp->p_refcnt, func) == 0) {
ASSERT(!list_link_active(&cp->p_node));
refcount_destroy(&cp->p_refcnt);
kmem_free(cp, sizeof (*cp));
}

cp = np;
}

ARCSTAT_BUMP(arcstat_prune);
mutex_exit(&arc_prune_mtx);
}

static void
arc_do_user_evicts(void)
{
Expand All @@ -1948,6 +2001,32 @@ arc_do_user_evicts(void)
mutex_exit(&arc_eviction_mtx);
}

/*
* Evict only meta data objects from the cache leaving the data objects.
* This is only used to enforce the tunable arc_meta_limit, if we are
* unable to evict enough buffers notify the user via the prune callback.
*/
void
arc_adjust_meta(int64_t adjustment, boolean_t may_prune)
{
int64_t delta;

if (adjustment > 0 && arc_mru->arcs_lsize[ARC_BUFC_METADATA] > 0) {
delta = MIN(arc_mru->arcs_lsize[ARC_BUFC_METADATA], adjustment);
arc_evict(arc_mru, 0, delta, FALSE, ARC_BUFC_METADATA);
adjustment -= delta;
}

if (adjustment > 0 && arc_mfu->arcs_lsize[ARC_BUFC_METADATA] > 0) {
delta = MIN(arc_mfu->arcs_lsize[ARC_BUFC_METADATA], adjustment);
arc_evict(arc_mfu, 0, delta, FALSE, ARC_BUFC_METADATA);
adjustment -= delta;
}

if (may_prune && (adjustment > 0) && (arc_meta_used > arc_meta_limit))
arc_do_user_prune(arc_meta_prune);
}

/*
* Flush all *evictable* data from the cache for the given spa.
* NOTE: this will not touch "active" (i.e. referenced) data.
Expand Down Expand Up @@ -2085,24 +2164,6 @@ arc_kmem_reap_now(arc_reclaim_strategy_t strat)
kmem_cache_t *prev_data_cache = NULL;
extern kmem_cache_t *zio_buf_cache[];
extern kmem_cache_t *zio_data_buf_cache[];
#ifdef _KERNEL
int retry = 0;

while ((arc_meta_used >= arc_meta_limit) && (retry < 10)) {
/*
* We are exceeding our meta-data cache limit.
* Purge some DNLC entries to release holds on meta-data.
*/
dnlc_reduce_cache((void *)(uintptr_t)arc_reduce_dnlc_percent);
retry++;
}
#if defined(__i386)
/*
* Reclaim unused memory from all kmem caches.
*/
kmem_reap();
#endif
#endif

/*
* An aggressive reclamation will shrink the cache size as well as
Expand All @@ -2121,6 +2182,7 @@ arc_kmem_reap_now(arc_reclaim_strategy_t strat)
kmem_cache_reap_now(zio_data_buf_cache[i]);
}
}

kmem_cache_reap_now(buf_cache);
kmem_cache_reap_now(hdr_cache);
}
Expand All @@ -2131,6 +2193,7 @@ arc_reclaim_thread(void)
clock_t growtime = 0;
arc_reclaim_strategy_t last_reclaim = ARC_RECLAIM_CONS;
callb_cpr_t cpr;
int64_t prune;

CALLB_CPR_INIT(&cpr, &arc_reclaim_thr_lock, callb_generic_cpr, FTAG);

Expand Down Expand Up @@ -2160,9 +2223,14 @@ arc_reclaim_thread(void)
arc_no_grow = FALSE;
}

/* Keep meta data usage within limits */
if (arc_meta_used >= arc_meta_limit)
arc_kmem_reap_now(ARC_RECLAIM_CONS);
/*
* Keep meta data usage within limits, arc_shrink() is not
* used to avoid collapsing the arc_c value when only the
* arc_meta_limit is being exceeded.
*/
prune = (int64_t)arc_meta_used - (int64_t)arc_meta_limit;
if (prune > 0)
arc_adjust_meta(prune, B_TRUE);

arc_adjust();

Expand Down Expand Up @@ -2399,16 +2467,27 @@ arc_get_data_buf(arc_buf_t *buf)
state = (arc_mru->arcs_lsize[type] >= size &&
mfu_space > arc_mfu->arcs_size) ? arc_mru : arc_mfu;
}

if ((buf->b_data = arc_evict(state, 0, size, TRUE, type)) == NULL) {
if (type == ARC_BUFC_METADATA) {
buf->b_data = zio_buf_alloc(size);
arc_space_consume(size, ARC_SPACE_DATA);

/*
* If we are unable to recycle an existing meta buffer
* signal the reclaim thread. It will notify users
* via the prune callback to drop references. The
* prune callback in run in the context of the reclaim
* thread to avoid deadlocking on the hash_lock.
*/
cv_signal(&arc_reclaim_thr_cv);
} else {
ASSERT(type == ARC_BUFC_DATA);
buf->b_data = zio_data_buf_alloc(size);
ARCSTAT_INCR(arcstat_data_size, size);
atomic_add_64(&arc_size, size);
}

ARCSTAT_BUMP(arcstat_recycle_miss);
}
ASSERT(buf->b_data != NULL);
Expand Down Expand Up @@ -3021,6 +3100,37 @@ arc_read_nolock(zio_t *pio, spa_t *spa, const blkptr_t *bp,
return (0);
}

arc_prune_t *
arc_add_prune_callback(arc_prune_func_t *func, void *private)
{
arc_prune_t *p;

p = kmem_alloc(sizeof(*p), KM_SLEEP);
p->p_pfunc = func;
p->p_private = private;
list_link_init(&p->p_node);
refcount_create(&p->p_refcnt);

mutex_enter(&arc_prune_mtx);
refcount_add(&p->p_refcnt, &arc_prune_list);
list_insert_head(&arc_prune_list, p);
mutex_exit(&arc_prune_mtx);

return (p);
}

void
arc_remove_prune_callback(arc_prune_t *p)
{
mutex_enter(&arc_prune_mtx);
list_remove(&arc_prune_list, p);
if (refcount_remove(&p->p_refcnt, &arc_prune_list) == 0) {
refcount_destroy(&p->p_refcnt);
kmem_free(p, sizeof (*p));
}
mutex_exit(&arc_prune_mtx);
}

void
arc_set_callback(arc_buf_t *buf, arc_evict_func_t *func, void *private)
{
Expand Down Expand Up @@ -3598,8 +3708,8 @@ arc_init(void)
if (zfs_arc_p_min_shift > 0)
arc_p_min_shift = zfs_arc_p_min_shift;

if (zfs_arc_reduce_dnlc_percent > 0)
arc_reduce_dnlc_percent = zfs_arc_reduce_dnlc_percent;
if (zfs_arc_meta_prune > 0)
arc_meta_prune = zfs_arc_meta_prune;

/* if kmem_flags are set, lets try to use less memory */
if (kmem_debugging())
Expand Down Expand Up @@ -3646,7 +3756,10 @@ arc_init(void)
buf_init();

arc_thread_exit = 0;
list_create(&arc_prune_list, sizeof (arc_prune_t),
offsetof(arc_prune_t, p_node));
arc_eviction_list = NULL;
mutex_init(&arc_prune_mtx, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&arc_eviction_mtx, NULL, MUTEX_DEFAULT, NULL);
bzero(&arc_eviction_hdr, sizeof (arc_buf_hdr_t));

Expand Down Expand Up @@ -3674,6 +3787,8 @@ arc_init(void)
void
arc_fini(void)
{
arc_prune_t *p;

mutex_enter(&arc_reclaim_thr_lock);
#ifdef _KERNEL
spl_unregister_shrinker(&arc_shrinker);
Expand All @@ -3693,6 +3808,17 @@ arc_fini(void)
arc_ksp = NULL;
}

mutex_enter(&arc_prune_mtx);
while ((p = list_head(&arc_prune_list)) != NULL) {
list_remove(&arc_prune_list, p);
refcount_remove(&p->p_refcnt, &arc_prune_list);
refcount_destroy(&p->p_refcnt);
kmem_free(p, sizeof (*p));
}
mutex_exit(&arc_prune_mtx);

list_destroy(&arc_prune_list);
mutex_destroy(&arc_prune_mtx);
mutex_destroy(&arc_eviction_mtx);
mutex_destroy(&arc_reclaim_thr_lock);
cv_destroy(&arc_reclaim_thr_cv);
Expand Down Expand Up @@ -4774,6 +4900,8 @@ l2arc_stop(void)
EXPORT_SYMBOL(arc_read);
EXPORT_SYMBOL(arc_buf_remove_ref);
EXPORT_SYMBOL(arc_getbuf_func);
EXPORT_SYMBOL(arc_add_prune_callback);
EXPORT_SYMBOL(arc_remove_prune_callback);

module_param(zfs_arc_min, ulong, 0444);
MODULE_PARM_DESC(zfs_arc_min, "Min arc size");
Expand All @@ -4784,8 +4912,8 @@ MODULE_PARM_DESC(zfs_arc_max, "Max arc size");
module_param(zfs_arc_meta_limit, ulong, 0444);
MODULE_PARM_DESC(zfs_arc_meta_limit, "Meta limit for arc size");

module_param(zfs_arc_reduce_dnlc_percent, int, 0444);
MODULE_PARM_DESC(zfs_arc_reduce_dnlc_percent, "Meta reclaim percentage");
module_param(zfs_arc_meta_prune, int, 0444);
MODULE_PARM_DESC(zfs_arc_meta_prune, "Bytes of meta data to prune");

module_param(zfs_arc_grow_retry, int, 0444);
MODULE_PARM_DESC(zfs_arc_grow_retry, "Seconds before growing arc size");
Expand Down
21 changes: 21 additions & 0 deletions module/zfs/zfs_vfsops.c
View file
Expand Up @@ -986,6 +986,26 @@ zfs_root(zfs_sb_t *zsb, struct inode **ipp)
}
EXPORT_SYMBOL(zfs_root);

#ifdef HAVE_SHRINK
int
zfs_sb_prune(struct super_block *sb, unsigned long nr_to_scan, int *objects)
{
zfs_sb_t *zsb = sb->s_fs_info;
struct shrinker *shrinker = &sb->s_shrink;
struct shrink_control sc = {
.nr_to_scan = nr_to_scan,
.gfp_mask = GFP_KERNEL,
};

ZFS_ENTER(zsb);
*objects = (*shrinker->shrink)(shrinker, &sc);
ZFS_EXIT(zsb);

return (0);
}
EXPORT_SYMBOL(zfs_sb_prune);
#endif /* HAVE_SHRINK */

/*
* Teardown the zfs_sb_t::z_os.
*
Expand Down Expand Up @@ -1533,6 +1553,7 @@ zfs_init(void)
zfs_znode_init();
dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
register_filesystem(&zpl_fs_type);
(void) arc_add_prune_callback(zpl_prune_sbs, NULL);
}

void
Expand Down
2 changes: 2 additions & 0 deletions module/zfs/zfs_znode.c
View file
Expand Up @@ -269,6 +269,7 @@ zfs_inode_destroy(struct inode *ip)

mutex_enter(&zsb->z_znodes_lock);
list_remove(&zsb->z_all_znodes, zp);
zsb->z_nr_znodes--;
mutex_exit(&zsb->z_znodes_lock);

if (zp->z_acl_cached) {
Expand Down Expand Up @@ -401,6 +402,7 @@ zfs_znode_alloc(zfs_sb_t *zsb, dmu_buf_t *db, int blksz,

mutex_enter(&zsb->z_znodes_lock);
list_insert_tail(&zsb->z_all_znodes, zp);
zsb->z_nr_znodes++;
membar_producer();
mutex_exit(&zsb->z_znodes_lock);

Expand Down
126 changes: 106 additions & 20 deletions module/zfs/zpl_super.c
View file
Expand Up @@ -199,34 +199,120 @@ zpl_kill_sb(struct super_block *sb)
kill_anon_super(sb);
}

#ifdef HAVE_SHRINK
/*
* Linux 3.1 - 3.x API
*
* The Linux 3.1 API introduced per-sb cache shrinkers to replace the
* global ones. This allows us a mechanism to cleanly target a specific
* zfs file system when the dnode and inode caches grow too large.
*
* In addition, the 3.0 kernel added the iterate_supers_type() helper
* function which is used to safely walk all of the zfs file systems.
*/
static void
zpl_prune_sb(struct super_block *sb, void *arg)
{
int objects = 0;
int error;

error = -zfs_sb_prune(sb, *(unsigned long *)arg, &objects);
ASSERT3S(error, <=, 0);

return;
}

void
zpl_prune_sbs(int64_t bytes_to_scan, void *private)
{
unsigned long nr_to_scan = (bytes_to_scan / sizeof(znode_t));

iterate_supers_type(&zpl_fs_type, zpl_prune_sb, &nr_to_scan);
kmem_reap();
}
#else
/*
* Linux 2.6.x - 3.0 API
*
* These are best effort interfaces are provided by the SPL to induce
* the Linux VM subsystem to reclaim a fraction of the both dnode and
* inode caches. Ideally, we want to just target the zfs file systems
* however our only option is to reclaim from them all.
*/
void
zpl_prune_sbs(int64_t bytes_to_scan, void *private)
{
unsigned long nr_to_scan = (bytes_to_scan / sizeof(znode_t));

shrink_dcache_memory(nr_to_scan, GFP_KERNEL);
shrink_icache_memory(nr_to_scan, GFP_KERNEL);
kmem_reap();
}
#endif /* HAVE_SHRINK */

#ifdef HAVE_NR_CACHED_OBJECTS
static int
zpl_nr_cached_objects(struct super_block *sb)
{
zfs_sb_t *zsb = sb->s_fs_info;
int nr;

mutex_enter(&zsb->z_znodes_lock);
nr = zsb->z_nr_znodes;
mutex_exit(&zsb->z_znodes_lock);

return (nr);
}
#endif /* HAVE_NR_CACHED_OBJECTS */

#ifdef HAVE_FREE_CACHED_OBJECTS
/*
* Attempt to evict some meta data from the cache. The ARC operates in
* terms of bytes while the Linux VFS uses objects. Now because this is
* just a best effort eviction and the exact values aren't critical so we
* extrapolate from an object count to a byte size using the znode_t size.
*/
static void
zpl_free_cached_objects(struct super_block *sb, int nr_to_scan)
{
arc_adjust_meta(nr_to_scan * sizeof(znode_t), B_FALSE);
}
#endif /* HAVE_FREE_CACHED_OBJECTS */

const struct super_operations zpl_super_operations = {
.alloc_inode = zpl_inode_alloc,
.destroy_inode = zpl_inode_destroy,
.dirty_inode = NULL,
.write_inode = NULL,
.drop_inode = NULL,
.alloc_inode = zpl_inode_alloc,
.destroy_inode = zpl_inode_destroy,
.dirty_inode = NULL,
.write_inode = NULL,
.drop_inode = NULL,
#ifdef HAVE_EVICT_INODE
.evict_inode = zpl_evict_inode,
.evict_inode = zpl_evict_inode,
#else
.clear_inode = zpl_clear_inode,
.delete_inode = zpl_inode_delete,
.clear_inode = zpl_clear_inode,
.delete_inode = zpl_inode_delete,
#endif /* HAVE_EVICT_INODE */
.put_super = zpl_put_super,
.write_super = NULL,
.sync_fs = zpl_sync_fs,
.statfs = zpl_statfs,
.remount_fs = zpl_remount_fs,
.show_options = zpl_show_options,
.show_stats = NULL,
.put_super = zpl_put_super,
.write_super = NULL,
.sync_fs = zpl_sync_fs,
.statfs = zpl_statfs,
.remount_fs = zpl_remount_fs,
.show_options = zpl_show_options,
.show_stats = NULL,
#ifdef HAVE_NR_CACHED_OBJECTS
.nr_cached_objects = zpl_nr_cached_objects,
#endif /* HAVE_NR_CACHED_OBJECTS */
#ifdef HAVE_FREE_CACHED_OBJECTS
.free_cached_objects = zpl_free_cached_objects,
#endif /* HAVE_FREE_CACHED_OBJECTS */
};

struct file_system_type zpl_fs_type = {
.owner = THIS_MODULE,
.name = ZFS_DRIVER,
.owner = THIS_MODULE,
.name = ZFS_DRIVER,
#ifdef HAVE_MOUNT_NODEV
.mount = zpl_mount,
.mount = zpl_mount,
#else
.get_sb = zpl_get_sb,
.get_sb = zpl_get_sb,
#endif /* HAVE_MOUNT_NODEV */
.kill_sb = zpl_kill_sb,
.kill_sb = zpl_kill_sb,
};
1 change: 1 addition & 0 deletions scripts/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions scripts/zpios-profile/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions scripts/zpios-test/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions scripts/zpool-config/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions scripts/zpool-layout/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions udev/Makefile.in
View file
Expand Up @@ -69,6 +69,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
1 change: 1 addition & 0 deletions udev/rules.d/Makefile.in
View file
Expand Up @@ -70,6 +70,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-rq-is_sync.m4 \
$(top_srcdir)/config/kernel-security-inode-init.m4 \
$(top_srcdir)/config/kernel-set-nlink.m4 \
$(top_srcdir)/config/kernel-shrink.m4 \
$(top_srcdir)/config/kernel-truncate-setsize.m4 \
$(top_srcdir)/config/kernel-xattr-handler.m4 \
$(top_srcdir)/config/kernel.m4 \
Expand Down
9 changes: 9 additions & 0 deletions zfs_config.h.in
View file
Expand Up @@ -90,6 +90,9 @@
/* kernel defines fmode_t */
#undef HAVE_FMODE_T

/* sops->free_cached_objects() exists */
#undef HAVE_FREE_CACHED_OBJECTS

/* fops->fsync() with range */
#undef HAVE_FSYNC_RANGE

Expand Down Expand Up @@ -141,6 +144,9 @@
/* mount_nodev() is available */
#undef HAVE_MOUNT_NODEV

/* sops->nr_cached_objects() exists */
#undef HAVE_NR_CACHED_OBJECTS

/* open_bdev_exclusive() is available */
#undef HAVE_OPEN_BDEV_EXCLUSIVE

Expand All @@ -156,6 +162,9 @@
/* set_nlink() is available */
#undef HAVE_SET_NLINK

/* struct super_block has s_shrink */
#undef HAVE_SHRINK

/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H

Expand Down