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

[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

Browse Source 
This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jes Sorensen
2006-01-09 15:59:24 -08:00
committed by Ingo Molnar
parent 794ee1baee
commit 1b1dcc1b57
113 changed files with 563 additions and 573 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/read_write.c
View File

@@ -33,7 +33,7 @@ loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
long long retval;
struct inode *inode = file->f_mapping->host;
down(&inode->i_sem);
mutex_lock(&inode->i_mutex);
switch (origin) {
case 2:
offset += inode->i_size;
@@ -49,7 +49,7 @@ loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
}
retval = offset;
}
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
return retval;
}