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

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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
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14
fs/reiserfs/inode.c
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@@ -40,12 +40,12 @@ void reiserfs_delete_inode(struct inode *inode)
/* The = 0 happens when we abort creating a new inode for some reason like lack of space.. */
if (!(inode->i_state & I_NEW) && INODE_PKEY(inode)->k_objectid != 0) { /* also handles bad_inode case */
down(&inode->i_sem);
mutex_lock(&inode->i_mutex);
reiserfs_delete_xattrs(inode);
if (journal_begin(&th, inode->i_sb, jbegin_count)) {
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
goto out;
}
reiserfs_update_inode_transaction(inode);
@@ -59,11 +59,11 @@ void reiserfs_delete_inode(struct inode *inode)
DQUOT_FREE_INODE(inode);
if (journal_end(&th, inode->i_sb, jbegin_count)) {
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
goto out;
}
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
/* check return value from reiserfs_delete_object after
* ending the transaction
@@ -551,7 +551,7 @@ static int convert_tail_for_hole(struct inode *inode,
/* we don't have to make sure the conversion did not happen while
** we were locking the page because anyone that could convert
** must first take i_sem.
** must first take i_mutex.
**
** We must fix the tail page for writing because it might have buffers
** that are mapped, but have a block number of 0. This indicates tail
@@ -586,7 +586,7 @@ static inline int _allocate_block(struct reiserfs_transaction_handle *th,
BUG_ON(!th->t_trans_id);
#ifdef REISERFS_PREALLOCATE
if (!(flags & GET_BLOCK_NO_ISEM)) {
if (!(flags & GET_BLOCK_NO_IMUX)) {
return reiserfs_new_unf_blocknrs2(th, inode, allocated_block_nr,
path, block);
}
@@ -2318,7 +2318,7 @@ static int map_block_for_writepage(struct inode *inode,
/* this is where we fill in holes in the file. */
if (use_get_block) {
retval = reiserfs_get_block(inode, block, bh_result,
GET_BLOCK_CREATE | GET_BLOCK_NO_ISEM
GET_BLOCK_CREATE | GET_BLOCK_NO_IMUX
| GET_BLOCK_NO_DANGLE);
if (!retval) {
if (!buffer_mapped(bh_result)