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Diffstat (limited to 'fs/gfs2/dir.c')
-rw-r--r--fs/gfs2/dir.c84
1 files changed, 41 insertions, 43 deletions
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index c34709512b19..eed040d8ba3a 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -159,6 +159,7 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
unsigned int o;
int copied = 0;
int error = 0;
+ int new = 0;
if (!size)
return 0;
@@ -183,7 +184,6 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
while (copied < size) {
unsigned int amount;
struct buffer_head *bh;
- int new = 0;
amount = size - copied;
if (amount > sdp->sd_sb.sb_bsize - o)
@@ -757,7 +757,7 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf;
- unsigned hsize = 1 << ip->i_di.di_depth;
+ unsigned hsize = 1 << ip->i_depth;
unsigned index;
u64 ln;
if (hsize * sizeof(u64) != ip->i_di.di_size) {
@@ -765,7 +765,7 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
return ERR_PTR(-EIO);
}
- index = name->hash >> (32 - ip->i_di.di_depth);
+ index = name->hash >> (32 - ip->i_depth);
error = get_first_leaf(ip, index, &bh);
if (error)
return ERR_PTR(error);
@@ -803,14 +803,15 @@ got_dent:
static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh, u16 depth)
{
struct gfs2_inode *ip = GFS2_I(inode);
- u64 bn = gfs2_alloc_meta(ip);
+ unsigned int n = 1;
+ u64 bn = gfs2_alloc_block(ip, &n);
struct buffer_head *bh = gfs2_meta_new(ip->i_gl, bn);
struct gfs2_leaf *leaf;
struct gfs2_dirent *dent;
struct qstr name = { .name = "", .len = 0, .hash = 0 };
if (!bh)
return NULL;
-
+ gfs2_trans_add_unrevoke(GFS2_SB(inode), bn, 1);
gfs2_trans_add_bh(ip->i_gl, bh, 1);
gfs2_metatype_set(bh, GFS2_METATYPE_LF, GFS2_FORMAT_LF);
leaf = (struct gfs2_leaf *)bh->b_data;
@@ -905,12 +906,11 @@ static int dir_make_exhash(struct inode *inode)
*lp = cpu_to_be64(bn);
dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
- dip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, 1);
dip->i_di.di_flags |= GFS2_DIF_EXHASH;
for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
- dip->i_di.di_depth = y;
+ dip->i_depth = y;
gfs2_dinode_out(dip, dibh->b_data);
@@ -941,7 +941,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
int x, moved = 0;
int error;
- index = name->hash >> (32 - dip->i_di.di_depth);
+ index = name->hash >> (32 - dip->i_depth);
error = get_leaf_nr(dip, index, &leaf_no);
if (error)
return error;
@@ -952,7 +952,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
return error;
oleaf = (struct gfs2_leaf *)obh->b_data;
- if (dip->i_di.di_depth == be16_to_cpu(oleaf->lf_depth)) {
+ if (dip->i_depth == be16_to_cpu(oleaf->lf_depth)) {
brelse(obh);
return 1; /* can't split */
}
@@ -967,10 +967,10 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
bn = nbh->b_blocknr;
/* Compute the start and len of leaf pointers in the hash table. */
- len = 1 << (dip->i_di.di_depth - be16_to_cpu(oleaf->lf_depth));
+ len = 1 << (dip->i_depth - be16_to_cpu(oleaf->lf_depth));
half_len = len >> 1;
if (!half_len) {
- printk(KERN_WARNING "di_depth %u lf_depth %u index %u\n", dip->i_di.di_depth, be16_to_cpu(oleaf->lf_depth), index);
+ printk(KERN_WARNING "i_depth %u lf_depth %u index %u\n", dip->i_depth, be16_to_cpu(oleaf->lf_depth), index);
gfs2_consist_inode(dip);
error = -EIO;
goto fail_brelse;
@@ -997,7 +997,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
kfree(lp);
/* Compute the divider */
- divider = (start + half_len) << (32 - dip->i_di.di_depth);
+ divider = (start + half_len) << (32 - dip->i_depth);
/* Copy the entries */
dirent_first(dip, obh, &dent);
@@ -1021,13 +1021,13 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
new->de_inum = dent->de_inum; /* No endian worries */
new->de_type = dent->de_type; /* No endian worries */
- nleaf->lf_entries = cpu_to_be16(be16_to_cpu(nleaf->lf_entries)+1);
+ be16_add_cpu(&nleaf->lf_entries, 1);
dirent_del(dip, obh, prev, dent);
if (!oleaf->lf_entries)
gfs2_consist_inode(dip);
- oleaf->lf_entries = cpu_to_be16(be16_to_cpu(oleaf->lf_entries)-1);
+ be16_add_cpu(&oleaf->lf_entries, -1);
if (!prev)
prev = dent;
@@ -1044,8 +1044,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
error = gfs2_meta_inode_buffer(dip, &dibh);
if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
gfs2_trans_add_bh(dip->i_gl, dibh, 1);
- dip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, 1);
gfs2_dinode_out(dip, dibh->b_data);
brelse(dibh);
}
@@ -1082,7 +1081,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
int x;
int error = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
@@ -1090,7 +1089,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
/* Allocate both the "from" and "to" buffers in one big chunk */
- buf = kcalloc(3, sdp->sd_hash_bsize, GFP_KERNEL | __GFP_NOFAIL);
+ buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
error = gfs2_dir_read_data(dip, (char *)buf,
@@ -1125,7 +1124,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
error = gfs2_meta_inode_buffer(dip, &dibh);
if (!gfs2_assert_withdraw(sdp, !error)) {
- dip->i_di.di_depth++;
+ dip->i_depth++;
gfs2_dinode_out(dip, dibh->b_data);
brelse(dibh);
}
@@ -1370,16 +1369,16 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
int error = 0;
unsigned depth = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
}
hash = gfs2_dir_offset2hash(*offset);
- index = hash >> (32 - dip->i_di.di_depth);
+ index = hash >> (32 - dip->i_depth);
- lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+ lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -1405,7 +1404,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
if (error)
break;
- len = 1 << (dip->i_di.di_depth - depth);
+ len = 1 << (dip->i_depth - depth);
index = (index & ~(len - 1)) + len;
}
@@ -1444,7 +1443,7 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
error = -ENOMEM;
/* 96 is max number of dirents which can be stuffed into an inode */
- darr = kmalloc(96 * sizeof(struct gfs2_dirent *), GFP_KERNEL);
+ darr = kmalloc(96 * sizeof(struct gfs2_dirent *), GFP_NOFS);
if (darr) {
g.pdent = darr;
g.offset = 0;
@@ -1549,7 +1548,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
u32 index;
u64 bn;
- index = name->hash >> (32 - ip->i_di.di_depth);
+ index = name->hash >> (32 - ip->i_depth);
error = get_first_leaf(ip, index, &obh);
if (error)
return error;
@@ -1579,8 +1578,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
if (error)
return error;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
- ip->i_di.di_blocks++;
- gfs2_set_inode_blocks(&ip->i_inode);
+ gfs2_add_inode_blocks(&ip->i_inode, 1);
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
return 0;
@@ -1616,7 +1614,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
dent->de_type = cpu_to_be16(type);
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
leaf = (struct gfs2_leaf *)bh->b_data;
- leaf->lf_entries = cpu_to_be16(be16_to_cpu(leaf->lf_entries) + 1);
+ be16_add_cpu(&leaf->lf_entries, 1);
}
brelse(bh);
error = gfs2_meta_inode_buffer(ip, &bh);
@@ -1641,7 +1639,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
continue;
if (error < 0)
break;
- if (ip->i_di.di_depth < GFS2_DIR_MAX_DEPTH) {
+ if (ip->i_depth < GFS2_DIR_MAX_DEPTH) {
error = dir_double_exhash(ip);
if (error)
break;
@@ -1785,13 +1783,13 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
u64 leaf_no;
int error = 0;
- hsize = 1 << dip->i_di.di_depth;
+ hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
gfs2_consist_inode(dip);
return -EIO;
}
- lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+ lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -1817,7 +1815,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
if (error)
goto out;
leaf = (struct gfs2_leaf *)bh->b_data;
- len = 1 << (dip->i_di.di_depth - be16_to_cpu(leaf->lf_depth));
+ len = 1 << (dip->i_depth - be16_to_cpu(leaf->lf_depth));
brelse(bh);
error = lc(dip, index, len, leaf_no, data);
@@ -1866,15 +1864,18 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
- ht = kzalloc(size, GFP_KERNEL);
+ ht = kzalloc(size, GFP_NOFS);
if (!ht)
return -ENOMEM;
- gfs2_alloc_get(dip);
+ if (!gfs2_alloc_get(dip)) {
+ error = -ENOMEM;
+ goto out;
+ }
error = gfs2_quota_hold(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
if (error)
- goto out;
+ goto out_put;
error = gfs2_rindex_hold(sdp, &dip->i_alloc->al_ri_gh);
if (error)
@@ -1894,7 +1895,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
l_blocks++;
}
- gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, 0);
+ gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
@@ -1921,11 +1922,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
brelse(bh);
gfs2_free_meta(dip, blk, 1);
-
- if (!dip->i_di.di_blocks)
- gfs2_consist_inode(dip);
- dip->i_di.di_blocks--;
- gfs2_set_inode_blocks(&dip->i_inode);
+ gfs2_add_inode_blocks(&dip->i_inode, -1);
}
error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);
@@ -1952,8 +1949,9 @@ out_rlist:
gfs2_glock_dq_uninit(&dip->i_alloc->al_ri_gh);
out_qs:
gfs2_quota_unhold(dip);
-out:
+out_put:
gfs2_alloc_put(dip);
+out:
kfree(ht);
return error;
}
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