aboutsummaryrefslogtreecommitdiff
path: root/fs/hpfs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/hpfs')
-rw-r--r--fs/hpfs/alloc.c68
-rw-r--r--fs/hpfs/buffer.c108
-rw-r--r--fs/hpfs/dir.c6
-rw-r--r--fs/hpfs/dnode.c44
-rw-r--r--fs/hpfs/ea.c6
-rw-r--r--fs/hpfs/file.c8
-rw-r--r--fs/hpfs/hpfs_fn.h8
-rw-r--r--fs/hpfs/inode.c5
-rw-r--r--fs/hpfs/map.c17
-rw-r--r--fs/hpfs/name.c11
-rw-r--r--fs/hpfs/namei.c4
-rw-r--r--fs/hpfs/super.c114
12 files changed, 255 insertions, 144 deletions
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index cdb84a83806..f005046e159 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -8,6 +8,58 @@
#include "hpfs_fn.h"
+static void hpfs_claim_alloc(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free != (unsigned)-1) {
+ if (unlikely(!sbi->sb_n_free)) {
+ hpfs_error(s, "free count underflow, allocating sector %08x", sec);
+ sbi->sb_n_free = -1;
+ return;
+ }
+ sbi->sb_n_free--;
+ }
+}
+
+static void hpfs_claim_free(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free != (unsigned)-1) {
+ if (unlikely(sbi->sb_n_free >= sbi->sb_fs_size)) {
+ hpfs_error(s, "free count overflow, freeing sector %08x", sec);
+ sbi->sb_n_free = -1;
+ return;
+ }
+ sbi->sb_n_free++;
+ }
+}
+
+static void hpfs_claim_dirband_alloc(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes != (unsigned)-1) {
+ if (unlikely(!sbi->sb_n_free_dnodes)) {
+ hpfs_error(s, "dirband free count underflow, allocating sector %08x", sec);
+ sbi->sb_n_free_dnodes = -1;
+ return;
+ }
+ sbi->sb_n_free_dnodes--;
+ }
+}
+
+static void hpfs_claim_dirband_free(struct super_block *s, secno sec)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes != (unsigned)-1) {
+ if (unlikely(sbi->sb_n_free_dnodes >= sbi->sb_dirband_size / 4)) {
+ hpfs_error(s, "dirband free count overflow, freeing sector %08x", sec);
+ sbi->sb_n_free_dnodes = -1;
+ return;
+ }
+ sbi->sb_n_free_dnodes++;
+ }
+}
+
/*
* Check if a sector is allocated in bitmap
* This is really slow. Turned on only if chk==2
@@ -203,9 +255,15 @@ secno hpfs_alloc_sector(struct super_block *s, secno near, unsigned n, int forwa
}
sec = 0;
ret:
+ if (sec) {
+ i = 0;
+ do
+ hpfs_claim_alloc(s, sec + i);
+ while (unlikely(++i < n));
+ }
if (sec && f_p) {
for (i = 0; i < forward; i++) {
- if (!hpfs_alloc_if_possible(s, sec + i + 1)) {
+ if (!hpfs_alloc_if_possible(s, sec + n + i)) {
hpfs_error(s, "Prealloc doesn't work! Wanted %d, allocated at %08x, can't allocate %d", forward, sec, i);
sec = 0;
break;
@@ -228,6 +286,7 @@ static secno alloc_in_dirband(struct super_block *s, secno near)
nr >>= 2;
sec = alloc_in_bmp(s, (~0x3fff) | nr, 1, 0);
if (!sec) return 0;
+ hpfs_claim_dirband_alloc(s, sec);
return ((sec & 0x3fff) << 2) + sbi->sb_dirband_start;
}
@@ -242,6 +301,7 @@ int hpfs_alloc_if_possible(struct super_block *s, secno sec)
bmp[(sec & 0x3fff) >> 5] &= cpu_to_le32(~(1 << (sec & 0x1f)));
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
+ hpfs_claim_alloc(s, sec);
return 1;
}
hpfs_brelse4(&qbh);
@@ -256,7 +316,7 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
struct quad_buffer_head qbh;
__le32 *bmp;
struct hpfs_sb_info *sbi = hpfs_sb(s);
- /*printk("2 - ");*/
+ /*pr_info("2 - ");*/
if (!n) return;
if (sec < 0x12) {
hpfs_error(s, "Trying to free reserved sector %08x", sec);
@@ -275,6 +335,7 @@ void hpfs_free_sectors(struct super_block *s, secno sec, unsigned n)
return;
}
bmp[(sec & 0x3fff) >> 5] |= cpu_to_le32(1 << (sec & 0x1f));
+ hpfs_claim_free(s, sec);
if (!--n) {
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
@@ -359,6 +420,7 @@ void hpfs_free_dnode(struct super_block *s, dnode_secno dno)
bmp[ssec >> 5] |= cpu_to_le32(1 << (ssec & 0x1f));
hpfs_mark_4buffers_dirty(&qbh);
hpfs_brelse4(&qbh);
+ hpfs_claim_dirband_free(s, dno);
}
}
@@ -366,7 +428,7 @@ struct dnode *hpfs_alloc_dnode(struct super_block *s, secno near,
dnode_secno *dno, struct quad_buffer_head *qbh)
{
struct dnode *d;
- if (hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_dmap) > FREE_DNODES_ADD) {
+ if (hpfs_get_free_dnodes(s) > FREE_DNODES_ADD) {
if (!(*dno = alloc_in_dirband(s, near)))
if (!(*dno = hpfs_alloc_sector(s, near, 4, 0))) return NULL;
} else {
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
index 4d0a1afa058..8057fe4e657 100644
--- a/fs/hpfs/buffer.c
+++ b/fs/hpfs/buffer.c
@@ -55,7 +55,7 @@ void *hpfs_map_sector(struct super_block *s, unsigned secno, struct buffer_head
if (bh != NULL)
return bh->b_data;
else {
- printk("HPFS: hpfs_map_sector: read error\n");
+ pr_err("%s(): read error\n", __func__);
return NULL;
}
}
@@ -76,7 +76,7 @@ void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head
set_buffer_uptodate(bh);
return bh->b_data;
} else {
- printk("HPFS: hpfs_get_sector: getblk failed\n");
+ pr_err("%s(): getblk failed\n", __func__);
return NULL;
}
}
@@ -86,7 +86,6 @@ void *hpfs_get_sector(struct super_block *s, unsigned secno, struct buffer_head
void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffer_head *qbh,
int ahead)
{
- struct buffer_head *bh;
char *data;
hpfs_lock_assert(s);
@@ -94,40 +93,38 @@ void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffe
cond_resched();
if (secno & 3) {
- printk("HPFS: hpfs_map_4sectors: unaligned read\n");
+ pr_err("%s(): unaligned read\n", __func__);
return NULL;
}
hpfs_prefetch_sectors(s, secno, 4 + ahead);
+ if (!(qbh->bh[0] = sb_bread(s, secno + 0))) goto bail0;
+ if (!(qbh->bh[1] = sb_bread(s, secno + 1))) goto bail1;
+ if (!(qbh->bh[2] = sb_bread(s, secno + 2))) goto bail2;
+ if (!(qbh->bh[3] = sb_bread(s, secno + 3))) goto bail3;
+
+ if (likely(qbh->bh[1]->b_data == qbh->bh[0]->b_data + 1 * 512) &&
+ likely(qbh->bh[2]->b_data == qbh->bh[0]->b_data + 2 * 512) &&
+ likely(qbh->bh[3]->b_data == qbh->bh[0]->b_data + 3 * 512)) {
+ return qbh->data = qbh->bh[0]->b_data;
+ }
+
qbh->data = data = kmalloc(2048, GFP_NOFS);
if (!data) {
- printk("HPFS: hpfs_map_4sectors: out of memory\n");
- goto bail;
+ pr_err("%s(): out of memory\n", __func__);
+ goto bail4;
}
- qbh->bh[0] = bh = sb_bread(s, secno);
- if (!bh)
- goto bail0;
- memcpy(data, bh->b_data, 512);
-
- qbh->bh[1] = bh = sb_bread(s, secno + 1);
- if (!bh)
- goto bail1;
- memcpy(data + 512, bh->b_data, 512);
-
- qbh->bh[2] = bh = sb_bread(s, secno + 2);
- if (!bh)
- goto bail2;
- memcpy(data + 2 * 512, bh->b_data, 512);
-
- qbh->bh[3] = bh = sb_bread(s, secno + 3);
- if (!bh)
- goto bail3;
- memcpy(data + 3 * 512, bh->b_data, 512);
+ memcpy(data + 0 * 512, qbh->bh[0]->b_data, 512);
+ memcpy(data + 1 * 512, qbh->bh[1]->b_data, 512);
+ memcpy(data + 2 * 512, qbh->bh[2]->b_data, 512);
+ memcpy(data + 3 * 512, qbh->bh[3]->b_data, 512);
return data;
+ bail4:
+ brelse(qbh->bh[3]);
bail3:
brelse(qbh->bh[2]);
bail2:
@@ -135,9 +132,6 @@ void *hpfs_map_4sectors(struct super_block *s, unsigned secno, struct quad_buffe
bail1:
brelse(qbh->bh[0]);
bail0:
- kfree(data);
- printk("HPFS: hpfs_map_4sectors: read error\n");
- bail:
return NULL;
}
@@ -151,48 +145,58 @@ void *hpfs_get_4sectors(struct super_block *s, unsigned secno,
hpfs_lock_assert(s);
if (secno & 3) {
- printk("HPFS: hpfs_get_4sectors: unaligned read\n");
+ pr_err("%s(): unaligned read\n", __func__);
return NULL;
}
- /*return hpfs_map_4sectors(s, secno, qbh, 0);*/
+ if (!hpfs_get_sector(s, secno + 0, &qbh->bh[0])) goto bail0;
+ if (!hpfs_get_sector(s, secno + 1, &qbh->bh[1])) goto bail1;
+ if (!hpfs_get_sector(s, secno + 2, &qbh->bh[2])) goto bail2;
+ if (!hpfs_get_sector(s, secno + 3, &qbh->bh[3])) goto bail3;
+
+ if (likely(qbh->bh[1]->b_data == qbh->bh[0]->b_data + 1 * 512) &&
+ likely(qbh->bh[2]->b_data == qbh->bh[0]->b_data + 2 * 512) &&
+ likely(qbh->bh[3]->b_data == qbh->bh[0]->b_data + 3 * 512)) {
+ return qbh->data = qbh->bh[0]->b_data;
+ }
+
if (!(qbh->data = kmalloc(2048, GFP_NOFS))) {
- printk("HPFS: hpfs_get_4sectors: out of memory\n");
- return NULL;
+ pr_err("%s(): out of memory\n", __func__);
+ goto bail4;
}
- if (!(hpfs_get_sector(s, secno, &qbh->bh[0]))) goto bail0;
- if (!(hpfs_get_sector(s, secno + 1, &qbh->bh[1]))) goto bail1;
- if (!(hpfs_get_sector(s, secno + 2, &qbh->bh[2]))) goto bail2;
- if (!(hpfs_get_sector(s, secno + 3, &qbh->bh[3]))) goto bail3;
- memcpy(qbh->data, qbh->bh[0]->b_data, 512);
- memcpy(qbh->data + 512, qbh->bh[1]->b_data, 512);
- memcpy(qbh->data + 2*512, qbh->bh[2]->b_data, 512);
- memcpy(qbh->data + 3*512, qbh->bh[3]->b_data, 512);
return qbh->data;
- bail3: brelse(qbh->bh[2]);
- bail2: brelse(qbh->bh[1]);
- bail1: brelse(qbh->bh[0]);
- bail0:
+bail4:
+ brelse(qbh->bh[3]);
+bail3:
+ brelse(qbh->bh[2]);
+bail2:
+ brelse(qbh->bh[1]);
+bail1:
+ brelse(qbh->bh[0]);
+bail0:
return NULL;
}
void hpfs_brelse4(struct quad_buffer_head *qbh)
{
- brelse(qbh->bh[3]);
- brelse(qbh->bh[2]);
- brelse(qbh->bh[1]);
+ if (unlikely(qbh->data != qbh->bh[0]->b_data))
+ kfree(qbh->data);
brelse(qbh->bh[0]);
- kfree(qbh->data);
+ brelse(qbh->bh[1]);
+ brelse(qbh->bh[2]);
+ brelse(qbh->bh[3]);
}
void hpfs_mark_4buffers_dirty(struct quad_buffer_head *qbh)
{
- memcpy(qbh->bh[0]->b_data, qbh->data, 512);
- memcpy(qbh->bh[1]->b_data, qbh->data + 512, 512);
- memcpy(qbh->bh[2]->b_data, qbh->data + 2 * 512, 512);
- memcpy(qbh->bh[3]->b_data, qbh->data + 3 * 512, 512);
+ if (unlikely(qbh->data != qbh->bh[0]->b_data)) {
+ memcpy(qbh->bh[0]->b_data, qbh->data + 0 * 512, 512);
+ memcpy(qbh->bh[1]->b_data, qbh->data + 1 * 512, 512);
+ memcpy(qbh->bh[2]->b_data, qbh->data + 2 * 512, 512);
+ memcpy(qbh->bh[3]->b_data, qbh->data + 3 * 512, 512);
+ }
mark_buffer_dirty(qbh->bh[0]);
mark_buffer_dirty(qbh->bh[1]);
mark_buffer_dirty(qbh->bh[2]);
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 292b1acb9b8..2a8e07425de 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -36,7 +36,7 @@ static loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
mutex_lock(&i->i_mutex);
hpfs_lock(s);
- /*printk("dir lseek\n");*/
+ /*pr_info("dir lseek\n");*/
if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
pos = ((loff_t) hpfs_de_as_down_as_possible(s, hpfs_inode->i_dno) << 4) + 1;
while (pos != new_off) {
@@ -51,7 +51,7 @@ ok:
mutex_unlock(&i->i_mutex);
return new_off;
fail:
- /*printk("illegal lseek: %016llx\n", new_off);*/
+ /*pr_warn("illegal lseek: %016llx\n", new_off);*/
hpfs_unlock(s);
mutex_unlock(&i->i_mutex);
return -ESPIPE;
@@ -127,7 +127,7 @@ static int hpfs_readdir(struct file *file, struct dir_context *ctx)
if (ctx->pos == 12)
goto out;
if (ctx->pos == 3 || ctx->pos == 4 || ctx->pos == 5) {
- printk("HPFS: warning: pos==%d\n",(int)ctx->pos);
+ pr_err("pos==%d\n", (int)ctx->pos);
goto out;
}
if (ctx->pos == 0) {
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index 4364b2a02c5..f36fc010fcc 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -17,7 +17,7 @@ static loff_t get_pos(struct dnode *d, struct hpfs_dirent *fde)
if (de == fde) return ((loff_t) le32_to_cpu(d->self) << 4) | (loff_t)i;
i++;
}
- printk("HPFS: get_pos: not_found\n");
+ pr_info("%s(): not_found\n", __func__);
return ((loff_t)le32_to_cpu(d->self) << 4) | (loff_t)1;
}
@@ -32,7 +32,7 @@ void hpfs_add_pos(struct inode *inode, loff_t *pos)
if (hpfs_inode->i_rddir_off[i] == pos) return;
if (!(i&0x0f)) {
if (!(ppos = kmalloc((i+0x11) * sizeof(loff_t*), GFP_NOFS))) {
- printk("HPFS: out of memory for position list\n");
+ pr_err("out of memory for position list\n");
return;
}
if (hpfs_inode->i_rddir_off) {
@@ -63,7 +63,8 @@ void hpfs_del_pos(struct inode *inode, loff_t *pos)
}
return;
not_f:
- /*printk("HPFS: warning: position pointer %p->%08x not found\n", pos, (int)*pos);*/
+ /*pr_warn("position pointer %p->%08x not found\n",
+ pos, (int)*pos);*/
return;
}
@@ -92,8 +93,11 @@ static void hpfs_pos_ins(loff_t *p, loff_t d, loff_t c)
{
if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
int n = (*p & 0x3f) + c;
- if (n > 0x3f) printk("HPFS: hpfs_pos_ins: %08x + %d\n", (int)*p, (int)c >> 8);
- else *p = (*p & ~0x3f) | n;
+ if (n > 0x3f)
+ pr_err("%s(): %08x + %d\n",
+ __func__, (int)*p, (int)c >> 8);
+ else
+ *p = (*p & ~0x3f) | n;
}
}
@@ -101,8 +105,11 @@ static void hpfs_pos_del(loff_t *p, loff_t d, loff_t c)
{
if ((*p & ~0x3f) == (d & ~0x3f) && (*p & 0x3f) >= (d & 0x3f)) {
int n = (*p & 0x3f) - c;
- if (n < 1) printk("HPFS: hpfs_pos_ins: %08x - %d\n", (int)*p, (int)c >> 8);
- else *p = (*p & ~0x3f) | n;
+ if (n < 1)
+ pr_err("%s(): %08x - %d\n",
+ __func__, (int)*p, (int)c >> 8);
+ else
+ *p = (*p & ~0x3f) | n;
}
}
@@ -239,12 +246,12 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
struct fnode *fnode;
int c1, c2 = 0;
if (!(nname = kmalloc(256, GFP_NOFS))) {
- printk("HPFS: out of memory, can't add to dnode\n");
+ pr_err("out of memory, can't add to dnode\n");
return 1;
}
go_up:
if (namelen >= 256) {
- hpfs_error(i->i_sb, "hpfs_add_to_dnode: namelen == %d", namelen);
+ hpfs_error(i->i_sb, "%s(): namelen == %d", __func__, namelen);
kfree(nd);
kfree(nname);
return 1;
@@ -281,7 +288,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
not be any error while splitting dnodes, otherwise the
whole directory, not only file we're adding, would
be lost. */
- printk("HPFS: out of memory for dnode splitting\n");
+ pr_err("out of memory for dnode splitting\n");
hpfs_brelse4(&qbh);
kfree(nname);
return 1;
@@ -597,7 +604,7 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
if (!de_next->down) goto endm;
ndown = de_down_pointer(de_next);
if (!(de_cp = kmalloc(le16_to_cpu(de->length), GFP_NOFS))) {
- printk("HPFS: out of memory for dtree balancing\n");
+ pr_err("out of memory for dtree balancing\n");
goto endm;
}
memcpy(de_cp, de, le16_to_cpu(de->length));
@@ -612,7 +619,8 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
hpfs_brelse4(&qbh1);
}
hpfs_add_to_dnode(i, ndown, de_cp->name, de_cp->namelen, de_cp, de_cp->down ? de_down_pointer(de_cp) : 0);
- /*printk("UP-TO-DNODE: %08x (ndown = %08x, down = %08x, dno = %08x)\n", up, ndown, down, dno);*/
+ /*pr_info("UP-TO-DNODE: %08x (ndown = %08x, down = %08x, dno = %08x)\n",
+ up, ndown, down, dno);*/
dno = up;
kfree(de_cp);
goto try_it_again;
@@ -637,15 +645,15 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
if (!dlp && down) {
if (le32_to_cpu(d1->first_free) > 2044) {
if (hpfs_sb(i->i_sb)->sb_chk >= 2) {
- printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
- printk("HPFS: warning: terminating balancing operation\n");
+ pr_err("unbalanced dnode tree, see hpfs.txt 4 more info\n");
+ pr_err("terminating balancing operation\n");
}
hpfs_brelse4(&qbh1);
goto endm;
}
if (hpfs_sb(i->i_sb)->sb_chk >= 2) {
- printk("HPFS: warning: unbalanced dnode tree, see hpfs.txt 4 more info\n");
- printk("HPFS: warning: goin'on\n");
+ pr_err("unbalanced dnode tree, see hpfs.txt 4 more info\n");
+ pr_err("goin'on\n");
}
le16_add_cpu(&del->length, 4);
del->down = 1;
@@ -659,7 +667,7 @@ static void delete_empty_dnode(struct inode *i, dnode_secno dno)
*(__le32 *) ((void *) del + le16_to_cpu(del->length) - 4) = cpu_to_le32(down);
} else goto endm;
if (!(de_cp = kmalloc(le16_to_cpu(de_prev->length), GFP_NOFS))) {
- printk("HPFS: out of memory for dtree balancing\n");
+ pr_err("out of memory for dtree balancing\n");
hpfs_brelse4(&qbh1);
goto endm;
}
@@ -1000,7 +1008,7 @@ struct hpfs_dirent *map_fnode_dirent(struct super_block *s, fnode_secno fno,
int d1, d2 = 0;
name1 = f->name;
if (!(name2 = kmalloc(256, GFP_NOFS))) {
- printk("HPFS: out of memory, can't map dirent\n");
+ pr_err("out of memory, can't map dirent\n");
return NULL;
}
if (f->len <= 15)
diff --git a/fs/hpfs/ea.c b/fs/hpfs/ea.c
index bcaafcd2666..ce3f98ba993 100644
--- a/fs/hpfs/ea.c
+++ b/fs/hpfs/ea.c
@@ -51,7 +51,7 @@ static char *get_indirect_ea(struct super_block *s, int ano, secno a, int size)
{
char *ret;
if (!(ret = kmalloc(size + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
if (hpfs_ea_read(s, a, ano, 0, size, ret)) {
@@ -139,7 +139,7 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si
if (ea_indirect(ea))
return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
memcpy(ret, ea_data(ea), ea_valuelen(ea));
@@ -165,7 +165,7 @@ char *hpfs_get_ea(struct super_block *s, struct fnode *fnode, char *key, int *si
if (ea_indirect(ea))
return get_indirect_ea(s, ea_in_anode(ea), ea_sec(ea), *size = ea_len(ea));
if (!(ret = kmalloc((*size = ea_valuelen(ea)) + 1, GFP_NOFS))) {
- printk("HPFS: out of memory for EA\n");
+ pr_err("out of memory for EA\n");
return NULL;
}
if (hpfs_ea_read(s, a, ano, pos + 4 + ea->namelen + 1, ea_valuelen(ea), ret)) {
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 67c1a61e095..7f54e5f76ce 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -197,10 +197,10 @@ const struct address_space_operations hpfs_aops = {
const struct file_operations hpfs_file_ops =
{
.llseek = generic_file_llseek,
- .read = do_sync_read,
- .aio_read = generic_file_aio_read,
- .write = do_sync_write,
- .aio_write = generic_file_aio_write,
+ .read = new_sync_read,
+ .read_iter = generic_file_read_iter,
+ .write = new_sync_write,
+ .write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.release = hpfs_file_release,
.fsync = hpfs_file_fsync,
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 1b398636e99..b63b75fa00e 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -8,6 +8,11 @@
//#define DBG
//#define DEBUG_LOCKS
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/mutex.h>
#include <linux/pagemap.h>
@@ -80,6 +85,7 @@ struct hpfs_sb_info {
unsigned sb_c_bitmap; /* current bitmap */
unsigned sb_max_fwd_alloc; /* max forwad allocation */
int sb_timeshift;
+ struct rcu_head rcu;
};
/* Four 512-byte buffers and the 2k block obtained by concatenating them */
@@ -311,7 +317,7 @@ static inline struct hpfs_sb_info *hpfs_sb(struct super_block *sb)
__printf(2, 3)
void hpfs_error(struct super_block *, const char *, ...);
int hpfs_stop_cycles(struct super_block *, int, int *, int *, char *);
-unsigned hpfs_count_one_bitmap(struct super_block *, secno);
+unsigned hpfs_get_free_dnodes(struct super_block *);
/*
* local time (HPFS) to GMT (Unix)
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index 9edeeb0ea97..7ce4b74234a 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -183,7 +183,8 @@ void hpfs_write_inode(struct inode *i)
struct inode *parent;
if (i->i_ino == hpfs_sb(i->i_sb)->sb_root) return;
if (hpfs_inode->i_rddir_off && !atomic_read(&i->i_count)) {
- if (*hpfs_inode->i_rddir_off) printk("HPFS: write_inode: some position still there\n");
+ if (*hpfs_inode->i_rddir_off)
+ pr_err("write_inode: some position still there\n");
kfree(hpfs_inode->i_rddir_off);
hpfs_inode->i_rddir_off = NULL;
}
@@ -304,7 +305,7 @@ void hpfs_write_if_changed(struct inode *inode)
void hpfs_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
if (!inode->i_nlink) {
hpfs_lock(inode->i_sb);
diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c
index 3aa66ae1031..442770edcdc 100644
--- a/fs/hpfs/map.c
+++ b/fs/hpfs/map.c
@@ -65,12 +65,13 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps)
struct code_page_directory *cp = hpfs_map_sector(s, cps, &bh, 0);
if (!cp) return NULL;
if (le32_to_cpu(cp->magic) != CP_DIR_MAGIC) {
- printk("HPFS: Code page directory magic doesn't match (magic = %08x)\n", le32_to_cpu(cp->magic));
+ pr_err("Code page directory magic doesn't match (magic = %08x)\n",
+ le32_to_cpu(cp->magic));
brelse(bh);
return NULL;
}
if (!le32_to_cpu(cp->n_code_pages)) {
- printk("HPFS: n_code_pages == 0\n");
+ pr_err("n_code_pages == 0\n");
brelse(bh);
return NULL;
}
@@ -79,19 +80,19 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps)
brelse(bh);
if (cpi >= 3) {
- printk("HPFS: Code page index out of array\n");
+ pr_err("Code page index out of array\n");
return NULL;
}
if (!(cpd = hpfs_map_sector(s, cpds, &bh, 0))) return NULL;
if (le16_to_cpu(cpd->offs[cpi]) > 0x178) {
- printk("HPFS: Code page index out of sector\n");
+ pr_err("Code page index out of sector\n");
brelse(bh);
return NULL;
}
ptr = (unsigned char *)cpd + le16_to_cpu(cpd->offs[cpi]) + 6;
if (!(cp_table = kmalloc(256, GFP_KERNEL))) {
- printk("HPFS: out of memory for code page table\n");
+ pr_err("out of memory for code page table\n");
brelse(bh);
return NULL;
}
@@ -114,7 +115,7 @@ __le32 *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
int i;
__le32 *b;
if (!(b = kmalloc(n * 512, GFP_KERNEL))) {
- printk("HPFS: can't allocate memory for bitmap directory\n");
+ pr_err("can't allocate memory for bitmap directory\n");
return NULL;
}
for (i=0;i<n;i++) {
@@ -281,7 +282,9 @@ struct dnode *hpfs_map_dnode(struct super_block *s, unsigned secno,
hpfs_error(s, "dnode %08x does not end with \\377 entry", secno);
goto bail;
}
- if (b == 3) printk("HPFS: warning: unbalanced dnode tree, dnode %08x; see hpfs.txt 4 more info\n", secno);
+ if (b == 3)
+ pr_err("unbalanced dnode tree, dnode %08x; see hpfs.txt 4 more info\n",
+ secno);
}
return dnode;
bail:
diff --git a/fs/hpfs/name.c b/fs/hpfs/name.c
index 9acdf338def..b00d396d22c 100644
--- a/fs/hpfs/name.c
+++ b/fs/hpfs/name.c
@@ -56,14 +56,15 @@ unsigned char *hpfs_translate_name(struct super_block *s, unsigned char *from,
unsigned char *to;
int i;
if (hpfs_sb(s)->sb_chk >= 2) if (hpfs_is_name_long(from, len) != lng) {
- printk("HPFS: Long name flag mismatch - name ");
- for (i=0; i<len; i++) printk("%c", from[i]);
- printk(" misidentified as %s.\n", lng ? "short" : "long");
- printk("HPFS: It's nothing serious. It could happen because of bug in OS/2.\nHPFS: Set checks=normal to disable this message.\n");
+ pr_err("Long name flag mismatch - name ");
+ for (i = 0; i < len; i++)
+ pr_cont("%c", from[i]);
+ pr_cont(" misidentified as %s.\n", lng ? "short" : "long");
+ pr_err("It's nothing serious. It could happen because of bug in OS/2.\nSet checks=normal to disable this message.\n");
}
if (!lc) return from;
if (!(to = kmalloc(len, GFP_KERNEL))) {
- printk("HPFS: can't allocate memory for name conversion buffer\n");
+ pr_err("can't allocate memory for name conversion buffer\n");
return from;
}
for (i = 0; i < len; i++) to[i] = locase(hpfs_sb(s)->sb_cp_table,from[i]);
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 345713d2f8f..bdbc2c3080a 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -404,10 +404,10 @@ again:
d_rehash(dentry);
} else {
struct iattr newattrs;
- /*printk("HPFS: truncating file before delete.\n");*/
+ /*pr_info("truncating file before delete.\n");*/
newattrs.ia_size = 0;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
- err = notify_change(dentry, &newattrs);
+ err = notify_change(dentry, &newattrs, NULL);
put_write_access(inode);
if (!err)
goto again;
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 4334cda8dba..7cd00d3a7c9 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -62,22 +62,26 @@ void hpfs_error(struct super_block *s, const char *fmt, ...)
vsnprintf(err_buf, sizeof(err_buf), fmt, args);
va_end(args);
- printk("HPFS: filesystem error: %s", err_buf);
+ pr_err("filesystem error: %s", err_buf);
if (!hpfs_sb(s)->sb_was_error) {
if (hpfs_sb(s)->sb_err == 2) {
- printk("; crashing the system because you wanted it\n");
+ pr_cont("; crashing the system because you wanted it\n");
mark_dirty(s, 0);
panic("HPFS panic");
} else if (hpfs_sb(s)->sb_err == 1) {
- if (s->s_flags & MS_RDONLY) printk("; already mounted read-only\n");
+ if (s->s_flags & MS_RDONLY)
+ pr_cont("; already mounted read-only\n");
else {
- printk("; remounting read-only\n");
+ pr_cont("; remounting read-only\n");
mark_dirty(s, 0);
s->s_flags |= MS_RDONLY;
}
- } else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n");
- else printk("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
- } else printk("\n");
+ } else if (s->s_flags & MS_RDONLY)
+ pr_cont("; going on - but anything won't be destroyed because it's read-only\n");
+ else
+ pr_cont("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
+ } else
+ pr_cont("\n");
hpfs_sb(s)->sb_was_error = 1;
}
@@ -101,21 +105,27 @@ int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
return 0;
}
-static void hpfs_put_super(struct super_block *s)
+static void free_sbi(struct hpfs_sb_info *sbi)
{
- struct hpfs_sb_info *sbi = hpfs_sb(s);
+ kfree(sbi->sb_cp_table);
+ kfree(sbi->sb_bmp_dir);
+ kfree(sbi);
+}
+static void lazy_free_sbi(struct rcu_head *rcu)
+{
+ free_sbi(container_of(rcu, struct hpfs_sb_info, rcu));
+}
+
+static void hpfs_put_super(struct super_block *s)
+{
hpfs_lock(s);
unmark_dirty(s);
hpfs_unlock(s);
-
- kfree(sbi->sb_cp_table);
- kfree(sbi->sb_bmp_dir);
- s->s_fs_info = NULL;
- kfree(sbi);
+ call_rcu(&hpfs_sb(s)->rcu, lazy_free_sbi);
}
-unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
+static unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
{
struct quad_buffer_head qbh;
unsigned long *bits;
@@ -123,7 +133,7 @@ unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
bits = hpfs_map_4sectors(s, secno, &qbh, 0);
if (!bits)
- return 0;
+ return (unsigned)-1;
count = bitmap_weight(bits, 2048 * BITS_PER_BYTE);
hpfs_brelse4(&qbh);
return count;
@@ -138,30 +148,45 @@ static unsigned count_bitmaps(struct super_block *s)
hpfs_prefetch_bitmap(s, n);
}
for (n = 0; n < n_bands; n++) {
+ unsigned c;
hpfs_prefetch_bitmap(s, n + COUNT_RD_AHEAD);
- count += hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
+ c = hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
+ if (c != (unsigned)-1)
+ count += c;
}
return count;
}
+unsigned hpfs_get_free_dnodes(struct super_block *s)
+{
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ if (sbi->sb_n_free_dnodes == (unsigned)-1) {
+ unsigned c = hpfs_count_one_bitmap(s, sbi->sb_dmap);
+ if (c == (unsigned)-1)
+ return 0;
+ sbi->sb_n_free_dnodes = c;
+ }
+ return sbi->sb_n_free_dnodes;
+}
+
static int hpfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *s = dentry->d_sb;
struct hpfs_sb_info *sbi = hpfs_sb(s);
u64 id = huge_encode_dev(s->s_bdev->bd_dev);
+
hpfs_lock(s);
- /*if (sbi->sb_n_free == -1) {*/
+ if (sbi->sb_n_free == (unsigned)-1)
sbi->sb_n_free = count_bitmaps(s);
- sbi->sb_n_free_dnodes = hpfs_count_one_bitmap(s, sbi->sb_dmap);
- /*}*/
+
buf->f_type = s->s_magic;
buf->f_bsize = 512;
buf->f_blocks = sbi->sb_fs_size;
buf->f_bfree = sbi->sb_n_free;
buf->f_bavail = sbi->sb_n_free;
buf->f_files = sbi->sb_dirband_size / 4;
- buf->f_ffree = sbi->sb_n_free_dnodes;
+ buf->f_ffree = hpfs_get_free_dnodes(s);
buf->f_fsid.val[0] = (u32)id;
buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = 254;
@@ -271,7 +296,7 @@ static int parse_opts(char *opts, kuid_t *uid, kgid_t *gid, umode_t *umask,
if (!opts)
return 1;
- /*printk("Parsing opts: '%s'\n",opts);*/
+ /*pr_info("Parsing opts: '%s'\n",opts);*/
while ((p = strsep(&opts, ",")) != NULL) {
substring_t args[MAX_OPT_ARGS];
@@ -366,7 +391,7 @@ static int parse_opts(char *opts, kuid_t *uid, kgid_t *gid, umode_t *umask,
static inline void hpfs_help(void)
{
- printk("\n\
+ pr_info("\n\
HPFS filesystem options:\n\
help do not mount and display this text\n\
uid=xxx set uid of files that don't have uid specified in eas\n\
@@ -400,6 +425,8 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
struct hpfs_sb_info *sbi = hpfs_sb(s);
char *new_opts = kstrdup(data, GFP_KERNEL);
+ sync_filesystem(s);
+
*flags |= MS_NOATIME;
hpfs_lock(s);
@@ -411,7 +438,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
if (!(o = parse_opts(data, &uid, &gid, &umask, &lowercase,
&eas, &chk, &errs, &chkdsk, &timeshift))) {
- printk("HPFS: bad mount options.\n");
+ pr_err("bad mount options.\n");
goto out_err;
}
if (o == 2) {
@@ -419,7 +446,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
goto out_err;
}
if (timeshift != sbi->sb_timeshift) {
- printk("HPFS: timeshift can't be changed using remount.\n");
+ pr_err("timeshift can't be changed using remount.\n");
goto out_err;
}
@@ -485,9 +512,6 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
}
s->s_fs_info = sbi;
- sbi->sb_bmp_dir = NULL;
- sbi->sb_cp_table = NULL;
-
mutex_init(&sbi->hpfs_mutex);
hpfs_lock(s);
@@ -503,7 +527,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (!(o = parse_opts(options, &uid, &gid, &umask, &lowercase,
&eas, &chk, &errs, &chkdsk, &timeshift))) {
- printk("HPFS: bad mount options.\n");
+ pr_err("bad mount options.\n");
goto bail0;
}
if (o==2) {
@@ -522,16 +546,17 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (/*le16_to_cpu(bootblock->magic) != BB_MAGIC
||*/ le32_to_cpu(superblock->magic) != SB_MAGIC
|| le32_to_cpu(spareblock->magic) != SP_MAGIC) {
- if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n");
+ if (!silent)
+ pr_err("Bad magic ... probably not HPFS\n");
goto bail4;
}
/* Check version */
if (!(s->s_flags & MS_RDONLY) &&
superblock->funcversion != 2 && superblock->funcversion != 3) {
- printk("HPFS: Bad version %d,%d. Mount readonly to go around\n",
+ pr_err("Bad version %d,%d. Mount readonly to go around\n",
(int)superblock->version, (int)superblock->funcversion);
- printk("HPFS: please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
+ pr_err("please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
goto bail4;
}
@@ -577,7 +602,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
/* Check for general fs errors*/
if (spareblock->dirty && !spareblock->old_wrote) {
if (errs == 2) {
- printk("HPFS: Improperly stopped, not mounted\n");
+ pr_err("Improperly stopped, not mounted\n");
goto bail4;
}
hpfs_error(s, "improperly stopped");
@@ -591,22 +616,25 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (spareblock->hotfixes_used || spareblock->n_spares_used) {
if (errs >= 2) {
- printk("HPFS: Hotfixes not supported here, try chkdsk\n");
+ pr_err("Hotfixes not supported here, try chkdsk\n");
mark_dirty(s, 0);
goto bail4;
}
hpfs_error(s, "hotfixes not supported here, try chkdsk");
- if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n");
- else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n");
+ if (errs == 0)
+ pr_err("Proceeding, but your filesystem will be probably corrupted by this driver...\n");
+ else
+ pr_err("This driver may read bad files or crash when operating on disk with hotfixes.\n");
}
if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) {
if (errs >= 2) {
- printk("HPFS: Spare dnodes used, try chkdsk\n");
+ pr_err("Spare dnodes used, try chkdsk\n");
mark_dirty(s, 0);
goto bail4;
}
hpfs_error(s, "warning: spare dnodes used, try chkdsk");
- if (errs == 0) printk("HPFS: Proceeding, but your filesystem could be corrupted if you delete files or directories\n");
+ if (errs == 0)
+ pr_err("Proceeding, but your filesystem could be corrupted if you delete files or directories\n");
}
if (chk) {
unsigned a;
@@ -625,12 +653,13 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
goto bail4;
}
sbi->sb_dirband_size = a;
- } else printk("HPFS: You really don't want any checks? You are crazy...\n");
+ } else
+ pr_err("You really don't want any checks? You are crazy...\n");
/* Load code page table */
if (le32_to_cpu(spareblock->n_code_pages))
if (!(sbi->sb_cp_table = hpfs_load_code_page(s, le32_to_cpu(spareblock->code_page_dir))))
- printk("HPFS: Warning: code page support is disabled\n");
+ pr_err("code page support is disabled\n");
brelse(bh2);
brelse(bh1);
@@ -679,10 +708,7 @@ bail2: brelse(bh0);
bail1:
bail0:
hpfs_unlock(s);
- kfree(sbi->sb_bmp_dir);
- kfree(sbi->sb_cp_table);
- s->s_fs_info = NULL;
- kfree(sbi);
+ free_sbi(sbi);
return -EINVAL;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-06 04:07:09 +0000