diff options
author | Arjan van de Ven <arjan@infradead.org> | 2006-03-23 11:00:42 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-23 15:38:14 (GMT) |
commit | 97461518610fb1679f67333bb699bb81136e49fe (patch) | |
tree | 483fcaf10744a96ad9fced97910fa75610c3fcdb /fs | |
parent | 7bf6d78dd93ccc52cd2cac5066c4b84834e4f1f2 (diff) | |
download | linux-fsl-qoriq-97461518610fb1679f67333bb699bb81136e49fe.tar.xz |
[PATCH] convert ext3's truncate_sem to a mutex
ext3's truncate_sem is always released in the same function it's taken
and it otherwise is a mutex as well..
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ext3/file.c | 4 | ||||
-rw-r--r-- | fs/ext3/inode.c | 14 | ||||
-rw-r--r-- | fs/ext3/ioctl.c | 4 | ||||
-rw-r--r-- | fs/ext3/super.c | 2 |
4 files changed, 12 insertions, 12 deletions
diff --git a/fs/ext3/file.c b/fs/ext3/file.c index 98e7834..59098ea 100644 --- a/fs/ext3/file.c +++ b/fs/ext3/file.c @@ -37,9 +37,9 @@ static int ext3_release_file (struct inode * inode, struct file * filp) if ((filp->f_mode & FMODE_WRITE) && (atomic_read(&inode->i_writecount) == 1)) { - down(&EXT3_I(inode)->truncate_sem); + mutex_lock(&EXT3_I(inode)->truncate_mutex); ext3_discard_reservation(inode); - up(&EXT3_I(inode)->truncate_sem); + mutex_unlock(&EXT3_I(inode)->truncate_mutex); } if (is_dx(inode) && filp->private_data) ext3_htree_free_dir_info(filp->private_data); diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index d59d5a6..2c36137 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -702,7 +702,7 @@ ext3_get_block_handle(handle_t *handle, struct inode *inode, sector_t iblock, if (!create || err == -EIO) goto cleanup; - down(&ei->truncate_sem); + mutex_lock(&ei->truncate_mutex); /* * If the indirect block is missing while we are reading @@ -723,7 +723,7 @@ ext3_get_block_handle(handle_t *handle, struct inode *inode, sector_t iblock, } partial = ext3_get_branch(inode, depth, offsets, chain, &err); if (!partial) { - up(&ei->truncate_sem); + mutex_unlock(&ei->truncate_mutex); if (err) goto cleanup; clear_buffer_new(bh_result); @@ -759,13 +759,13 @@ ext3_get_block_handle(handle_t *handle, struct inode *inode, sector_t iblock, err = ext3_splice_branch(handle, inode, iblock, chain, partial, left); /* - * i_disksize growing is protected by truncate_sem. Don't forget to + * i_disksize growing is protected by truncate_mutex. Don't forget to * protect it if you're about to implement concurrent * ext3_get_block() -bzzz */ if (!err && extend_disksize && inode->i_size > ei->i_disksize) ei->i_disksize = inode->i_size; - up(&ei->truncate_sem); + mutex_unlock(&ei->truncate_mutex); if (err) goto cleanup; @@ -1227,7 +1227,7 @@ static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh) * ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ... * * Same applies to ext3_get_block(). We will deadlock on various things like - * lock_journal and i_truncate_sem. + * lock_journal and i_truncate_mutex. * * Setting PF_MEMALLOC here doesn't work - too many internal memory * allocations fail. @@ -2161,7 +2161,7 @@ void ext3_truncate(struct inode * inode) * From here we block out all ext3_get_block() callers who want to * modify the block allocation tree. */ - down(&ei->truncate_sem); + mutex_lock(&ei->truncate_mutex); if (n == 1) { /* direct blocks */ ext3_free_data(handle, inode, NULL, i_data+offsets[0], @@ -2228,7 +2228,7 @@ do_indirects: ext3_discard_reservation(inode); - up(&ei->truncate_sem); + mutex_unlock(&ei->truncate_mutex); inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; ext3_mark_inode_dirty(handle, inode); diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c index 556cd55..aaf1da1 100644 --- a/fs/ext3/ioctl.c +++ b/fs/ext3/ioctl.c @@ -182,7 +182,7 @@ flags_err: * need to allocate reservation structure for this inode * before set the window size */ - down(&ei->truncate_sem); + mutex_lock(&ei->truncate_mutex); if (!ei->i_block_alloc_info) ext3_init_block_alloc_info(inode); @@ -190,7 +190,7 @@ flags_err: struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node; rsv->rsv_goal_size = rsv_window_size; } - up(&ei->truncate_sem); + mutex_unlock(&ei->truncate_mutex); return 0; } case EXT3_IOC_GROUP_EXTEND: { diff --git a/fs/ext3/super.c b/fs/ext3/super.c index efa8320..efe5b20 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -472,7 +472,7 @@ static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) #ifdef CONFIG_EXT3_FS_XATTR init_rwsem(&ei->xattr_sem); #endif - init_MUTEX(&ei->truncate_sem); + mutex_init(&ei->truncate_mutex); inode_init_once(&ei->vfs_inode); } } |