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Diffstat (limited to 'fs/xfs/xfs_itable.c')
-rw-r--r--fs/xfs/xfs_itable.c59
1 files changed, 28 insertions, 31 deletions
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 16737cbbee17..50a3e5995dd9 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -262,20 +262,26 @@ xfs_bulkstat_grab_ichunk(
#define XFS_BULKSTAT_UBLEFT(ubleft) ((ubleft) >= statstruct_size)
+struct xfs_bulkstat_agichunk {
+ char __user **ac_ubuffer;/* pointer into user's buffer */
+ int ac_ubleft; /* bytes left in user's buffer */
+ int ac_ubelem; /* spaces used in user's buffer */
+};
+
/*
* Process inodes in chunk with a pointer to a formatter function
* that will iget the inode and fill in the appropriate structure.
*/
-int
+static int
xfs_bulkstat_ag_ichunk(
struct xfs_mount *mp,
xfs_agnumber_t agno,
struct xfs_inobt_rec_incore *irbp,
bulkstat_one_pf formatter,
size_t statstruct_size,
- struct xfs_bulkstat_agichunk *acp)
+ struct xfs_bulkstat_agichunk *acp,
+ xfs_ino_t *lastino)
{
- xfs_ino_t lastino = acp->ac_lastino;
char __user **ubufp = acp->ac_ubuffer;
int ubleft = acp->ac_ubleft;
int ubelem = acp->ac_ubelem;
@@ -295,7 +301,7 @@ xfs_bulkstat_ag_ichunk(
/* Skip if this inode is free */
if (XFS_INOBT_MASK(chunkidx) & irbp->ir_free) {
- lastino = ino;
+ *lastino = ino;
continue;
}
@@ -313,7 +319,7 @@ xfs_bulkstat_ag_ichunk(
ubleft = 0;
break;
}
- lastino = ino;
+ *lastino = ino;
continue;
}
if (fmterror == BULKSTAT_RV_GIVEUP) {
@@ -325,10 +331,9 @@ xfs_bulkstat_ag_ichunk(
*ubufp += ubused;
ubleft -= ubused;
ubelem++;
- lastino = ino;
+ *lastino = ino;
}
- acp->ac_lastino = lastino;
acp->ac_ubleft = ubleft;
acp->ac_ubelem = ubelem;
@@ -355,7 +360,6 @@ xfs_bulkstat(
xfs_btree_cur_t *cur; /* btree cursor for ialloc btree */
int end_of_ag; /* set if we've seen the ag end */
int error; /* error code */
- int fmterror;/* bulkstat formatter result */
int icount; /* count of inodes good in irbuf */
size_t irbsize; /* size of irec buffer in bytes */
xfs_ino_t ino; /* inode number (filesystem) */
@@ -366,10 +370,8 @@ xfs_bulkstat(
int nirbuf; /* size of irbuf */
int rval; /* return value error code */
int ubcount; /* size of user's buffer */
- int ubleft; /* bytes left in user's buffer */
- char __user *ubufp; /* pointer into user's buffer */
- int ubelem; /* spaces used in user's buffer */
int stat;
+ struct xfs_bulkstat_agichunk ac;
/*
* Get the last inode value, see if there's nothing to do.
@@ -386,11 +388,13 @@ xfs_bulkstat(
}
ubcount = *ubcountp; /* statstruct's */
- ubleft = ubcount * statstruct_size; /* bytes */
- *ubcountp = ubelem = 0;
+ ac.ac_ubuffer = &ubuffer;
+ ac.ac_ubleft = ubcount * statstruct_size; /* bytes */;
+ ac.ac_ubelem = 0;
+
+ *ubcountp = 0;
*done = 0;
- fmterror = 0;
- ubufp = ubuffer;
+
irbuf = kmem_zalloc_greedy(&irbsize, PAGE_SIZE, PAGE_SIZE * 4);
if (!irbuf)
return -ENOMEM;
@@ -402,7 +406,7 @@ xfs_bulkstat(
* inode returned; 0 means start of the allocation group.
*/
rval = 0;
- while (XFS_BULKSTAT_UBLEFT(ubleft) && agno < mp->m_sb.sb_agcount) {
+ while (XFS_BULKSTAT_UBLEFT(ac.ac_ubleft) && agno < mp->m_sb.sb_agcount) {
cond_resched();
error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
if (error)
@@ -497,28 +501,21 @@ del_cursor:
*/
irbufend = irbp;
for (irbp = irbuf;
- irbp < irbufend && XFS_BULKSTAT_UBLEFT(ubleft); irbp++) {
- struct xfs_bulkstat_agichunk ac;
-
- ac.ac_lastino = lastino;
- ac.ac_ubuffer = &ubuffer;
- ac.ac_ubleft = ubleft;
- ac.ac_ubelem = ubelem;
+ irbp < irbufend && XFS_BULKSTAT_UBLEFT(ac.ac_ubleft);
+ irbp++) {
error = xfs_bulkstat_ag_ichunk(mp, agno, irbp,
- formatter, statstruct_size, &ac);
+ formatter, statstruct_size, &ac,
+ &lastino);
if (error)
rval = error;
- lastino = ac.ac_lastino;
- ubleft = ac.ac_ubleft;
- ubelem = ac.ac_ubelem;
-
cond_resched();
}
+
/*
* Set up for the next loop iteration.
*/
- if (XFS_BULKSTAT_UBLEFT(ubleft)) {
+ if (XFS_BULKSTAT_UBLEFT(ac.ac_ubleft)) {
if (end_of_ag) {
agno++;
agino = 0;
@@ -531,11 +528,11 @@ del_cursor:
* Done, we're either out of filesystem or space to put the data.
*/
kmem_free(irbuf);
- *ubcountp = ubelem;
+ *ubcountp = ac.ac_ubelem;
/*
* Found some inodes, return them now and return the error next time.
*/
- if (ubelem)
+ if (ac.ac_ubelem)
rval = 0;
if (agno >= mp->m_sb.sb_agcount) {
/*