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author | Eric Sandeen <sandeen@redhat.com> | 2012-11-08 11:22:46 -0500 |
---|---|---|
committer | Theodore Ts'o <tytso@mit.edu> | 2012-11-08 11:22:46 -0500 |
commit | 37be2f59d3149b95afaeeeff94edde2c07f165d2 (patch) | |
tree | e24a689476b15f3d39aa71026e8db67a8b57b545 | |
parent | 6d138ced751d4e41e02c38ad55d1b3cd2913b150 (diff) | |
download | linux-3.10-37be2f59d3149b95afaeeeff94edde2c07f165d2.tar.gz linux-3.10-37be2f59d3149b95afaeeeff94edde2c07f165d2.tar.bz2 linux-3.10-37be2f59d3149b95afaeeeff94edde2c07f165d2.zip |
ext4: remove ext4_handle_release_buffer()
ext4_handle_release_buffer() was intended to remove journal
write access from a buffer, but it doesn't actually do anything
at all other than add a BUFFER_TRACE point, but it's not reliably
used for that either. Remove all the associated dead code.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
-rw-r--r-- | fs/ext4/ext4_jbd2.h | 7 | ||||
-rw-r--r-- | fs/ext4/resize.c | 17 | ||||
-rw-r--r-- | fs/ext4/xattr.c | 1 | ||||
-rw-r--r-- | fs/jbd2/journal.c | 1 | ||||
-rw-r--r-- | fs/jbd2/transaction.c | 11 | ||||
-rw-r--r-- | include/linux/jbd2.h | 1 |
6 files changed, 3 insertions, 35 deletions
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index 56d258c1830..7177f9b21cb 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -254,13 +254,6 @@ static inline void ext4_handle_sync(handle_t *handle) handle->h_sync = 1; } -static inline void ext4_handle_release_buffer(handle_t *handle, - struct buffer_head *bh) -{ - if (ext4_handle_valid(handle)) - jbd2_journal_release_buffer(handle, bh); -} - static inline int ext4_handle_is_aborted(handle_t *handle) { if (ext4_handle_valid(handle)) diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 47bf06a2765..d99387b89ed 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -783,7 +783,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, err = ext4_journal_get_write_access(handle, gdb_bh); if (unlikely(err)) - goto exit_sbh; + goto exit_dind; err = ext4_journal_get_write_access(handle, dind); if (unlikely(err)) @@ -792,7 +792,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, /* ext4_reserve_inode_write() gets a reference on the iloc */ err = ext4_reserve_inode_write(handle, inode, &iloc); if (unlikely(err)) - goto exit_dindj; + goto exit_dind; n_group_desc = ext4_kvmalloc((gdb_num + 1) * sizeof(struct buffer_head *), @@ -846,12 +846,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, exit_inode: ext4_kvfree(n_group_desc); - /* ext4_handle_release_buffer(handle, iloc.bh); */ brelse(iloc.bh); -exit_dindj: - /* ext4_handle_release_buffer(handle, dind); */ -exit_sbh: - /* ext4_handle_release_buffer(handle, EXT4_SB(sb)->s_sbh); */ exit_dind: brelse(dind); exit_bh: @@ -969,14 +964,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode, } for (i = 0; i < reserved_gdb; i++) { - if ((err = ext4_journal_get_write_access(handle, primary[i]))) { - /* - int j; - for (j = 0; j < i; j++) - ext4_handle_release_buffer(handle, primary[j]); - */ + if ((err = ext4_journal_get_write_access(handle, primary[i]))) goto exit_bh; - } } if ((err = ext4_reserve_inode_write(handle, inode, &iloc))) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 2cdb98d6298..b1adda1b750 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -794,7 +794,6 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode, int offset = (char *)s->here - bs->bh->b_data; unlock_buffer(bs->bh); - ext4_handle_release_buffer(handle, bs->bh); if (ce) { mb_cache_entry_release(ce); ce = NULL; diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 484b8d1c6cb..dbf41f9452d 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -60,7 +60,6 @@ EXPORT_SYMBOL(jbd2_journal_get_create_access); EXPORT_SYMBOL(jbd2_journal_get_undo_access); EXPORT_SYMBOL(jbd2_journal_set_triggers); EXPORT_SYMBOL(jbd2_journal_dirty_metadata); -EXPORT_SYMBOL(jbd2_journal_release_buffer); EXPORT_SYMBOL(jbd2_journal_forget); #if 0 EXPORT_SYMBOL(journal_sync_buffer); diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index a74ba465954..deffd945c8e 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -1207,17 +1207,6 @@ out: return ret; } -/* - * jbd2_journal_release_buffer: undo a get_write_access without any buffer - * updates, if the update decided in the end that it didn't need access. - * - */ -void -jbd2_journal_release_buffer(handle_t *handle, struct buffer_head *bh) -{ - BUFFER_TRACE(bh, "entry"); -} - /** * void jbd2_journal_forget() - bforget() for potentially-journaled buffers. * @handle: transaction handle diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 3efc43f3f16..de7f5568208 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1096,7 +1096,6 @@ extern int jbd2_journal_get_undo_access(handle_t *, struct buffer_head *); void jbd2_journal_set_triggers(struct buffer_head *, struct jbd2_buffer_trigger_type *type); extern int jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *); -extern void jbd2_journal_release_buffer (handle_t *, struct buffer_head *); extern int jbd2_journal_forget (handle_t *, struct buffer_head *); extern void journal_sync_buffer (struct buffer_head *); extern void jbd2_journal_invalidatepage(journal_t *, |