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Diffstat (limited to 'fs/ext3/inode.c')
-rw-r--r--fs/ext3/inode.c60
1 files changed, 35 insertions, 25 deletions
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 9a4a5c48b1c9..2bd85486b879 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -27,6 +27,7 @@
#include <linux/writeback.h>
#include <linux/mpage.h>
#include <linux/namei.h>
+#include <linux/aio.h>
#include "ext3.h"
#include "xattr.h"
#include "acl.h"
@@ -218,7 +219,8 @@ void ext3_evict_inode (struct inode *inode)
*/
if (inode->i_nlink && ext3_should_journal_data(inode) &&
EXT3_SB(inode->i_sb)->s_journal &&
- (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
+ (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode)) &&
+ inode->i_ino != EXT3_JOURNAL_INO) {
tid_t commit_tid = atomic_read(&ei->i_datasync_tid);
journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
@@ -676,6 +678,10 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
* parent to disk.
*/
bh = sb_getblk(inode->i_sb, new_blocks[n-1]);
+ if (unlikely(!bh)) {
+ err = -ENOMEM;
+ goto failed;
+ }
branch[n].bh = bh;
lock_buffer(bh);
BUFFER_TRACE(bh, "call get_create_access");
@@ -717,7 +723,7 @@ failed:
BUFFER_TRACE(branch[i].bh, "call journal_forget");
ext3_journal_forget(handle, branch[i].bh);
}
- for (i = 0; i <indirect_blks; i++)
+ for (i = 0; i < indirect_blks; i++)
ext3_free_blocks(handle, inode, new_blocks[i], 1);
ext3_free_blocks(handle, inode, new_blocks[i], num);
@@ -1071,16 +1077,15 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
* mapped. 0 in case of a HOLE.
*/
if (err > 0) {
- if (err > 1)
- WARN_ON(1);
+ WARN_ON(err > 1);
err = 0;
}
*errp = err;
if (!err && buffer_mapped(&dummy)) {
struct buffer_head *bh;
bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
- if (!bh) {
- *errp = -EIO;
+ if (unlikely(!bh)) {
+ *errp = -ENOMEM;
goto err;
}
if (buffer_new(&dummy)) {
@@ -1820,19 +1825,20 @@ ext3_readpages(struct file *file, struct address_space *mapping,
return mpage_readpages(mapping, pages, nr_pages, ext3_get_block);
}
-static void ext3_invalidatepage(struct page *page, unsigned long offset)
+static void ext3_invalidatepage(struct page *page, unsigned int offset,
+ unsigned int length)
{
journal_t *journal = EXT3_JOURNAL(page->mapping->host);
- trace_ext3_invalidatepage(page, offset);
+ trace_ext3_invalidatepage(page, offset, length);
/*
* If it's a full truncate we just forget about the pending dirtying
*/
- if (offset == 0)
+ if (offset == 0 && length == PAGE_CACHE_SIZE)
ClearPageChecked(page);
- journal_invalidatepage(journal, page, offset);
+ journal_invalidatepage(journal, page, offset, length);
}
static int ext3_releasepage(struct page *page, gfp_t wait)
@@ -1979,6 +1985,7 @@ static const struct address_space_operations ext3_ordered_aops = {
.direct_IO = ext3_direct_IO,
.migratepage = buffer_migrate_page,
.is_partially_uptodate = block_is_partially_uptodate,
+ .is_dirty_writeback = buffer_check_dirty_writeback,
.error_remove_page = generic_error_remove_page,
};
@@ -2730,12 +2737,12 @@ static int __ext3_get_inode_loc(struct inode *inode,
return -EIO;
bh = sb_getblk(inode->i_sb, block);
- if (!bh) {
+ if (unlikely(!bh)) {
ext3_error (inode->i_sb, "ext3_get_inode_loc",
"unable to read inode block - "
"inode=%lu, block="E3FSBLK,
inode->i_ino, block);
- return -EIO;
+ return -ENOMEM;
}
if (!buffer_uptodate(bh)) {
lock_buffer(bh);
@@ -2784,7 +2791,7 @@ static int __ext3_get_inode_loc(struct inode *inode,
bitmap_bh = sb_getblk(inode->i_sb,
le32_to_cpu(desc->bg_inode_bitmap));
- if (!bitmap_bh)
+ if (unlikely(!bitmap_bh))
goto make_io;
/*
@@ -3072,6 +3079,8 @@ static int ext3_do_update_inode(handle_t *handle,
struct ext3_inode_info *ei = EXT3_I(inode);
struct buffer_head *bh = iloc->bh;
int err = 0, rc, block;
+ int need_datasync = 0;
+ __le32 disksize;
uid_t i_uid;
gid_t i_gid;
@@ -3113,7 +3122,11 @@ again:
raw_inode->i_gid_high = 0;
}
raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
- raw_inode->i_size = cpu_to_le32(ei->i_disksize);
+ disksize = cpu_to_le32(ei->i_disksize);
+ if (disksize != raw_inode->i_size) {
+ need_datasync = 1;
+ raw_inode->i_size = disksize;
+ }
raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
raw_inode->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
raw_inode->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
@@ -3129,8 +3142,11 @@ again:
if (!S_ISREG(inode->i_mode)) {
raw_inode->i_dir_acl = cpu_to_le32(ei->i_dir_acl);
} else {
- raw_inode->i_size_high =
- cpu_to_le32(ei->i_disksize >> 32);
+ disksize = cpu_to_le32(ei->i_disksize >> 32);
+ if (disksize != raw_inode->i_size_high) {
+ raw_inode->i_size_high = disksize;
+ need_datasync = 1;
+ }
if (ei->i_disksize > 0x7fffffffULL) {
struct super_block *sb = inode->i_sb;
if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
@@ -3183,6 +3199,8 @@ again:
ext3_clear_inode_state(inode, EXT3_STATE_NEW);
atomic_set(&ei->i_sync_tid, handle->h_transaction->t_tid);
+ if (need_datasync)
+ atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
out_brelse:
brelse (bh);
ext3_std_error(inode->i_sb, err);
@@ -3196,7 +3214,7 @@ out_brelse:
*
* - Within generic_file_write() for O_SYNC files.
* Here, there will be no transaction running. We wait for any running
- * trasnaction to commit.
+ * transaction to commit.
*
* - Within sys_sync(), kupdate and such.
* We wait on commit, if tol to.
@@ -3459,14 +3477,6 @@ ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
* inode out, but prune_icache isn't a user-visible syncing function.
* Whenever the user wants stuff synced (sys_sync, sys_msync, sys_fsync)
* we start and wait on commits.
- *
- * Is this efficient/effective? Well, we're being nice to the system
- * by cleaning up our inodes proactively so they can be reaped
- * without I/O. But we are potentially leaving up to five seconds'
- * worth of inodes floating about which prune_icache wants us to
- * write out. One way to fix that would be to get prune_icache()
- * to do a write_super() to free up some memory. It has the desired
- * effect.
*/
int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 10:47:37 +0000