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-rw-r--r--fs/xfs/libxfs/xfs_format.h8
-rw-r--r--fs/xfs/xfs_acl.c13
-rw-r--r--fs/xfs/xfs_acl.h3
-rw-r--r--fs/xfs/xfs_file.c21
-rw-r--r--fs/xfs/xfs_inode.c2
-rw-r--r--fs/xfs/xfs_inode_item.c1
-rw-r--r--fs/xfs/xfs_inode_item.h1
-rw-r--r--fs/xfs/xfs_ioctl.c15
-rw-r--r--fs/xfs/xfs_mount.c10
-rw-r--r--fs/xfs/xfs_mount.h1
-rw-r--r--fs/xfs/xfs_super.c1
-rw-r--r--fs/xfs/xfs_trans_ail.c1
-rw-r--r--fs/xfs/xfs_trans_inode.c9
-rw-r--r--fs/xfs/xfs_xattr.c31
14 files changed, 101 insertions, 16 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 8568de163004..8774498ce0ff 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -1495,9 +1495,13 @@ struct xfs_acl {
sizeof(struct xfs_acl_entry) \
: 25)
-#define XFS_ACL_MAX_SIZE(mp) \
+#define XFS_ACL_SIZE(cnt) \
(sizeof(struct xfs_acl) + \
- sizeof(struct xfs_acl_entry) * XFS_ACL_MAX_ENTRIES((mp)))
+ sizeof(struct xfs_acl_entry) * cnt)
+
+#define XFS_ACL_MAX_SIZE(mp) \
+ XFS_ACL_SIZE(XFS_ACL_MAX_ENTRIES((mp)))
+
/* On-disk XFS extended attribute names */
#define SGI_ACL_FILE "SGI_ACL_FILE"
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 4b641676f258..763e36560681 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -37,16 +37,19 @@
STATIC struct posix_acl *
xfs_acl_from_disk(
- struct xfs_acl *aclp,
- int max_entries)
+ const struct xfs_acl *aclp,
+ int len,
+ int max_entries)
{
struct posix_acl_entry *acl_e;
struct posix_acl *acl;
- struct xfs_acl_entry *ace;
+ const struct xfs_acl_entry *ace;
unsigned int count, i;
+ if (len < sizeof(*aclp))
+ return ERR_PTR(-EFSCORRUPTED);
count = be32_to_cpu(aclp->acl_cnt);
- if (count > max_entries)
+ if (count > max_entries || XFS_ACL_SIZE(count) != len)
return ERR_PTR(-EFSCORRUPTED);
acl = posix_acl_alloc(count, GFP_KERNEL);
@@ -163,7 +166,7 @@ xfs_get_acl(struct inode *inode, int type)
goto out;
}
- acl = xfs_acl_from_disk(xfs_acl, XFS_ACL_MAX_ENTRIES(ip->i_mount));
+ acl = xfs_acl_from_disk(xfs_acl, len, XFS_ACL_MAX_ENTRIES(ip->i_mount));
if (IS_ERR(acl))
goto out;
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
index 3841b07f27bf..75af0a4d9028 100644
--- a/fs/xfs/xfs_acl.h
+++ b/fs/xfs/xfs_acl.h
@@ -36,4 +36,7 @@ static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
# define posix_acl_access_exists(inode) 0
# define posix_acl_default_exists(inode) 0
#endif /* CONFIG_XFS_POSIX_ACL */
+
+extern void xfs_forget_acl(struct inode *inode, const char *name, int xflags);
+
#endif /* __XFS_ACL_H__ */
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 2f7b6bd39f61..a3bf4c099dd2 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -242,19 +242,30 @@ xfs_file_fsync(
}
/*
- * All metadata updates are logged, which means that we just have
- * to flush the log up to the latest LSN that touched the inode.
+ * All metadata updates are logged, which means that we just have to
+ * flush the log up to the latest LSN that touched the inode. If we have
+ * concurrent fsync/fdatasync() calls, we need them to all block on the
+ * log force before we clear the ili_fsync_fields field. This ensures
+ * that we don't get a racing sync operation that does not wait for the
+ * metadata to hit the journal before returning. If we race with
+ * clearing the ili_fsync_fields, then all that will happen is the log
+ * force will do nothing as the lsn will already be on disk. We can't
+ * race with setting ili_fsync_fields because that is done under
+ * XFS_ILOCK_EXCL, and that can't happen because we hold the lock shared
+ * until after the ili_fsync_fields is cleared.
*/
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (!datasync ||
- (ip->i_itemp->ili_fields & ~XFS_ILOG_TIMESTAMP))
+ (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
lsn = ip->i_itemp->ili_last_lsn;
}
- xfs_iunlock(ip, XFS_ILOCK_SHARED);
- if (lsn)
+ if (lsn) {
error = _xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed);
+ ip->i_itemp->ili_fsync_fields = 0;
+ }
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
/*
* If we only have a single device, and the log force about was
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index a0f2bae6dc1e..8ee393996b7d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2365,6 +2365,7 @@ retry:
iip->ili_last_fields = iip->ili_fields;
iip->ili_fields = 0;
+ iip->ili_fsync_fields = 0;
iip->ili_logged = 1;
xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
&iip->ili_item.li_lsn);
@@ -3560,6 +3561,7 @@ xfs_iflush_int(
*/
iip->ili_last_fields = iip->ili_fields;
iip->ili_fields = 0;
+ iip->ili_fsync_fields = 0;
iip->ili_logged = 1;
xfs_trans_ail_copy_lsn(mp->m_ail, &iip->ili_flush_lsn,
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 62bd80f4edd9..d14b12b8cfef 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -719,6 +719,7 @@ xfs_iflush_abort(
* attempted.
*/
iip->ili_fields = 0;
+ iip->ili_fsync_fields = 0;
}
/*
* Release the inode's flush lock since we're done with it.
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index 488d81254e28..4c7722e325b3 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -34,6 +34,7 @@ typedef struct xfs_inode_log_item {
unsigned short ili_logged; /* flushed logged data */
unsigned int ili_last_fields; /* fields when flushed */
unsigned int ili_fields; /* fields to be logged */
+ unsigned int ili_fsync_fields; /* logged since last fsync */
} xfs_inode_log_item_t;
static inline int xfs_inode_clean(xfs_inode_t *ip)
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index c88ddcadd656..d42738deec6d 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -40,6 +40,7 @@
#include "xfs_symlink.h"
#include "xfs_trans.h"
#include "xfs_pnfs.h"
+#include "xfs_acl.h"
#include <linux/capability.h>
#include <linux/dcache.h>
@@ -482,6 +483,7 @@ xfs_attrmulti_attr_set(
__uint32_t flags)
{
unsigned char *kbuf;
+ int error;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
return -EPERM;
@@ -492,7 +494,11 @@ xfs_attrmulti_attr_set(
if (IS_ERR(kbuf))
return PTR_ERR(kbuf);
- return xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
+ error = xfs_attr_set(XFS_I(inode), name, kbuf, len, flags);
+ if (!error)
+ xfs_forget_acl(inode, name, flags);
+ kfree(kbuf);
+ return error;
}
int
@@ -501,9 +507,14 @@ xfs_attrmulti_attr_remove(
unsigned char *name,
__uint32_t flags)
{
+ int error;
+
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
return -EPERM;
- return xfs_attr_remove(XFS_I(inode), name, flags);
+ error = xfs_attr_remove(XFS_I(inode), name, flags);
+ if (!error)
+ xfs_forget_acl(inode, name, flags);
+ return error;
}
STATIC int
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index eb498ce39f4c..bb753b359bee 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -47,6 +47,16 @@ static DEFINE_MUTEX(xfs_uuid_table_mutex);
static int xfs_uuid_table_size;
static uuid_t *xfs_uuid_table;
+void
+xfs_uuid_table_free(void)
+{
+ if (xfs_uuid_table_size == 0)
+ return;
+ kmem_free(xfs_uuid_table);
+ xfs_uuid_table = NULL;
+ xfs_uuid_table_size = 0;
+}
+
/*
* See if the UUID is unique among mounted XFS filesystems.
* Mount fails if UUID is nil or a FS with the same UUID is already mounted.
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8795272cb662..6db5fc041d4f 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,6 +313,7 @@ typedef struct xfs_perag {
int pagb_count; /* pagb slots in use */
} xfs_perag_t;
+extern void xfs_uuid_table_free(void);
extern int xfs_log_sbcount(xfs_mount_t *);
extern __uint64_t xfs_default_resblks(xfs_mount_t *mp);
extern int xfs_mountfs(xfs_mount_t *mp);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index b2c252cd7172..0378e22eeae1 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1925,6 +1925,7 @@ exit_xfs_fs(void)
xfs_mru_cache_uninit();
xfs_destroy_workqueues();
xfs_destroy_zones();
+ xfs_uuid_table_free();
}
module_init(init_xfs_fs);
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 4f18fd92ca13..aa67339b9537 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -497,6 +497,7 @@ xfsaild(
long tout = 0; /* milliseconds */
current->flags |= PF_MEMALLOC;
+ set_freezable();
while (!kthread_should_stop()) {
if (tout && tout <= 20)
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 17280cd71934..b97f1df910ab 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -108,6 +108,15 @@ xfs_trans_log_inode(
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
/*
+ * Record the specific change for fdatasync optimisation. This
+ * allows fdatasync to skip log forces for inodes that are only
+ * timestamp dirty. We do this before the change count so that
+ * the core being logged in this case does not impact on fdatasync
+ * behaviour.
+ */
+ ip->i_itemp->ili_fsync_fields |= flags;
+
+ /*
* First time we log the inode in a transaction, bump the inode change
* counter if it is configured for this to occur. We don't use
* inode_inc_version() because there is no need for extra locking around
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index c036815183cb..8294f86441bf 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -53,11 +53,34 @@ xfs_xattr_get(struct dentry *dentry, const char *name,
return asize;
}
+void
+xfs_forget_acl(
+ struct inode *inode,
+ const char *name,
+ int xflags)
+{
+ /*
+ * Invalidate any cached ACLs if the user has bypassed the ACL
+ * interface. We don't validate the content whatsoever so it is caller
+ * responsibility to provide data in valid format and ensure i_mode is
+ * consistent.
+ */
+ if (xflags & ATTR_ROOT) {
+#ifdef CONFIG_XFS_POSIX_ACL
+ if (!strcmp(name, SGI_ACL_FILE))
+ forget_cached_acl(inode, ACL_TYPE_ACCESS);
+ else if (!strcmp(name, SGI_ACL_DEFAULT))
+ forget_cached_acl(inode, ACL_TYPE_DEFAULT);
+#endif
+ }
+}
+
static int
xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags, int xflags)
{
- struct xfs_inode *ip = XFS_I(d_inode(dentry));
+ struct xfs_inode *ip = XFS_I(d_inode(dentry));
+ int error;
if (strcmp(name, "") == 0)
return -EINVAL;
@@ -70,8 +93,12 @@ xfs_xattr_set(struct dentry *dentry, const char *name, const void *value,
if (!value)
return xfs_attr_remove(ip, (unsigned char *)name, xflags);
- return xfs_attr_set(ip, (unsigned char *)name,
+ error = xfs_attr_set(ip, (unsigned char *)name,
(void *)value, size, xflags);
+ if (!error)
+ xfs_forget_acl(d_inode(dentry), name, xflags);
+
+ return error;
}
static const struct xattr_handler xfs_xattr_user_handler = {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 02:12:50 +0000