xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] f_count may wrap around

Browse Source 
make it atomic_long_t; while we are at it, get rid of useless checks in affs,
hfs and hpfs - ->open() always has it equal to 1, ->release() - to 0.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2008-07-26 00:39:17 -04:00
parent 3c333937ee
commit 516e0cc564
11 changed files with 27 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/hfs/inode.c
View File

@@ -522,8 +522,6 @@ static int hfs_file_open(struct inode *inode, struct file *file)
{
if (HFS_IS_RSRC(inode))
inode = HFS_I(inode)->rsrc_inode;
if (atomic_read(&file->f_count) != 1)
return 0;
atomic_inc(&HFS_I(inode)->opencnt);
return 0;
}
@@ -534,8 +532,6 @@ static int hfs_file_release(struct inode *inode, struct file *file)
if (HFS_IS_RSRC(inode))
inode = HFS_I(inode)->rsrc_inode;
if (atomic_read(&file->f_count) != 0)
return 0;
if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
mutex_lock(&inode->i_mutex);
hfs_file_truncate(inode);