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Diffstat (limited to 'fs/fat')
-rw-r--r--fs/fat/dir.c31
-rw-r--r--fs/fat/fatent.c7
-rw-r--r--fs/fat/file.c2
-rw-r--r--fs/fat/inode.c4
4 files changed, 28 insertions, 16 deletions
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index ccf161dffb63..72cbcd61bd95 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -313,7 +313,7 @@ int fat_search_long(struct inode *inode, const unsigned char *name,
wchar_t bufuname[14];
unsigned char xlate_len, nr_slots;
wchar_t *unicode = NULL;
- unsigned char work[8], bufname[260]; /* 256 + 4 */
+ unsigned char work[MSDOS_NAME], bufname[260]; /* 256 + 4 */
int uni_xlate = sbi->options.unicode_xlate;
int utf8 = sbi->options.utf8;
int anycase = (sbi->options.name_check != 's');
@@ -351,7 +351,8 @@ parse_record:
if (work[0] == 0x05)
work[0] = 0xE5;
for (i = 0, j = 0, last_u = 0; i < 8;) {
- if (!work[i]) break;
+ if (!work[i])
+ break;
chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
&bufuname[j++], opt_shortname,
de->lcase & CASE_LOWER_BASE);
@@ -365,13 +366,15 @@ parse_record:
}
j = last_u;
fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
- for (i = 0; i < 3;) {
- if (!de->ext[i]) break;
- chl = fat_shortname2uni(nls_disk, &de->ext[i], 3 - i,
+ for (i = 8; i < MSDOS_NAME;) {
+ if (!work[i])
+ break;
+ chl = fat_shortname2uni(nls_disk, &work[i],
+ MSDOS_NAME - i,
&bufuname[j++], opt_shortname,
de->lcase & CASE_LOWER_EXT);
if (chl <= 1) {
- if (de->ext[i] != ' ')
+ if (work[i] != ' ')
last_u = j;
} else {
last_u = j;
@@ -445,7 +448,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
int fill_len;
wchar_t bufuname[14];
wchar_t *unicode = NULL;
- unsigned char c, work[8], bufname[56], *ptname = bufname;
+ unsigned char c, work[MSDOS_NAME], bufname[56], *ptname = bufname;
unsigned long lpos, dummy, *furrfu = &lpos;
int uni_xlate = sbi->options.unicode_xlate;
int isvfat = sbi->options.isvfat;
@@ -527,7 +530,8 @@ parse_record:
if (work[0] == 0x05)
work[0] = 0xE5;
for (i = 0, j = 0, last = 0, last_u = 0; i < 8;) {
- if (!(c = work[i])) break;
+ if (!(c = work[i]))
+ break;
chl = fat_shortname2uni(nls_disk, &work[i], 8 - i,
&bufuname[j++], opt_shortname,
de->lcase & CASE_LOWER_BASE);
@@ -549,9 +553,10 @@ parse_record:
j = last_u;
fat_short2uni(nls_disk, ".", 1, &bufuname[j++]);
ptname[i++] = '.';
- for (i2 = 0; i2 < 3;) {
- if (!(c = de->ext[i2])) break;
- chl = fat_shortname2uni(nls_disk, &de->ext[i2], 3 - i2,
+ for (i2 = 8; i2 < MSDOS_NAME;) {
+ if (!(c = work[i2]))
+ break;
+ chl = fat_shortname2uni(nls_disk, &work[i2], MSDOS_NAME - i2,
&bufuname[j++], opt_shortname,
de->lcase & CASE_LOWER_EXT);
if (chl <= 1) {
@@ -563,8 +568,8 @@ parse_record:
}
} else {
last_u = j;
- for (chi = 0; chi < chl && i2 < 3; chi++) {
- ptname[i++] = de->ext[i2++];
+ for (chi = 0; chi < chl && i2 < MSDOS_NAME; chi++) {
+ ptname[i++] = work[i2++];
last = i;
}
}
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index ab171ea8e869..2c1b73fb82ae 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -17,6 +17,8 @@ struct fatent_operations {
int (*ent_next)(struct fat_entry *);
};
+static DEFINE_SPINLOCK(fat12_entry_lock);
+
static void fat12_ent_blocknr(struct super_block *sb, int entry,
int *offset, sector_t *blocknr)
{
@@ -116,10 +118,13 @@ static int fat12_ent_get(struct fat_entry *fatent)
u8 **ent12_p = fatent->u.ent12_p;
int next;
+ spin_lock(&fat12_entry_lock);
if (fatent->entry & 1)
next = (*ent12_p[0] >> 4) | (*ent12_p[1] << 4);
else
next = (*ent12_p[1] << 8) | *ent12_p[0];
+ spin_unlock(&fat12_entry_lock);
+
next &= 0x0fff;
if (next >= BAD_FAT12)
next = FAT_ENT_EOF;
@@ -151,6 +156,7 @@ static void fat12_ent_put(struct fat_entry *fatent, int new)
if (new == FAT_ENT_EOF)
new = EOF_FAT12;
+ spin_lock(&fat12_entry_lock);
if (fatent->entry & 1) {
*ent12_p[0] = (new << 4) | (*ent12_p[0] & 0x0f);
*ent12_p[1] = new >> 4;
@@ -158,6 +164,7 @@ static void fat12_ent_put(struct fat_entry *fatent, int new)
*ent12_p[0] = new & 0xff;
*ent12_p[1] = (*ent12_p[1] & 0xf0) | (new >> 8);
}
+ spin_unlock(&fat12_entry_lock);
mark_buffer_dirty(fatent->bhs[0]);
if (fatent->nr_bhs == 2)
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 55d3c7461c5b..69a83b59dce8 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -134,7 +134,7 @@ const struct file_operations fat_file_operations = {
.release = fat_file_release,
.ioctl = fat_generic_ioctl,
.fsync = file_fsync,
- .sendfile = generic_file_sendfile,
+ .splice_read = generic_file_splice_read,
};
static int fat_cont_expand(struct inode *inode, loff_t size)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 479722d89667..0a7ddb39a593 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -20,6 +20,7 @@
#include <linux/pagemap.h>
#include <linux/mpage.h>
#include <linux/buffer_head.h>
+#include <linux/exportfs.h>
#include <linux/mount.h>
#include <linux/vfs.h>
#include <linux/parser.h>
@@ -354,8 +355,7 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
} else { /* not a directory */
inode->i_generation |= 1;
inode->i_mode = MSDOS_MKMODE(de->attr,
- ((sbi->options.showexec &&
- !is_exec(de->ext))
+ ((sbi->options.showexec && !is_exec(de->name + 8))
? S_IRUGO|S_IWUGO : S_IRWXUGO)
& ~sbi->options.fs_fmask) | S_IFREG;
MSDOS_I(inode)->i_start = le16_to_cpu(de->start);
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-29 08:28:52 +0000