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authorBrian Foster <bfoster@redhat.com>2012-11-07 12:21:13 -0500
committerBen Myers <bpm@sgi.com>2012-11-08 15:29:14 -0600
commit3e3f9f5863548e870edfcc72e7617ac8ddcad44a (patch)
treeab1952acea4c3cad7048d6c168987ba7b7e73552 /fs/xfs
parent8ca149de80478441352a8622ea15fae7de703ced (diff)
xfs: add inode id filtering to eofblocks scan
Support inode ID filtering in the eofblocks scan. The caller must set the associated XFS_EOF_FLAGS_*ID bit and ID field. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_fs.h14
-rw-r--r--fs/xfs/xfs_icache.c22
-rw-r--r--fs/xfs/xfs_ioctl.c3
3 files changed, 36 insertions, 3 deletions
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 0cfa30813b1..a19f9b205c1 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -346,13 +346,23 @@ typedef struct xfs_error_injection {
struct xfs_eofblocks {
__u32 eof_version;
__u32 eof_flags;
- __u64 pad[15];
+ uid_t eof_uid;
+ gid_t eof_gid;
+ prid_t eof_prid;
+ __u32 pad32;
+ __u64 pad64[13];
};
/* eof_flags values */
#define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */
+#define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
+#define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
+#define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
#define XFS_EOF_FLAGS_VALID \
- (XFS_EOF_FLAGS_SYNC)
+ (XFS_EOF_FLAGS_SYNC | \
+ XFS_EOF_FLAGS_UID | \
+ XFS_EOF_FLAGS_GID | \
+ XFS_EOF_FLAGS_PRID)
/*
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index fbb74c71526..b239da91c43 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -1171,6 +1171,21 @@ xfs_reclaim_inodes_count(
}
STATIC int
+xfs_inode_match_id(
+ struct xfs_inode *ip,
+ struct xfs_eofblocks *eofb)
+{
+ if (eofb->eof_flags & XFS_EOF_FLAGS_UID)
+ return ip->i_d.di_uid == eofb->eof_uid;
+ else if (eofb->eof_flags & XFS_EOF_FLAGS_GID)
+ return ip->i_d.di_gid == eofb->eof_gid;
+ else if (eofb->eof_flags & XFS_EOF_FLAGS_PRID)
+ return xfs_get_projid(ip) == eofb->eof_prid;
+
+ return 0;
+}
+
+STATIC int
xfs_inode_free_eofblocks(
struct xfs_inode *ip,
struct xfs_perag *pag,
@@ -1178,6 +1193,7 @@ xfs_inode_free_eofblocks(
void *args)
{
int ret;
+ struct xfs_eofblocks *eofb = args;
if (!xfs_can_free_eofblocks(ip, false)) {
/* inode could be preallocated or append-only */
@@ -1194,6 +1210,12 @@ xfs_inode_free_eofblocks(
mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY))
return 0;
+ if (eofb &&
+ (eofb->eof_flags & (XFS_EOF_FLAGS_UID|XFS_EOF_FLAGS_GID|
+ XFS_EOF_FLAGS_PRID)) &&
+ !xfs_inode_match_id(ip, eofb))
+ return 0;
+
ret = xfs_free_eofblocks(ip->i_mount, ip, true);
/* don't revisit the inode if we're not waiting */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 5b20ab0b4f9..c1c3ef88a26 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1615,7 +1615,8 @@ xfs_file_ioctl(
if (eofb.eof_flags & ~XFS_EOF_FLAGS_VALID)
return -XFS_ERROR(EINVAL);
- if (memchr_inv(eofb.pad, 0, sizeof(eofb.pad)))
+ if (memchr_inv(&eofb.pad32, 0, sizeof(eofb.pad32)) ||
+ memchr_inv(eofb.pad64, 0, sizeof(eofb.pad64)))
return -XFS_ERROR(EINVAL);
error = xfs_icache_free_eofblocks(mp, &eofb);