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Message-ID: <AANLkTimMZfSBx-c_O_N2HNVHSsZObFmFLo2peFB_d_Fy@mail.gmail.com>
Date: Sat, 29 Jan 2011 21:29:37 -0800
From: Manish Katiyar <mkatiyar@...il.com>
To: Jan Kara <jack@...e.cz>
Cc: ext4 <linux-ext4@...r.kernel.org>, mkatiyar@...il.com
Subject: Re: [PATCH 2/3] ext4 : Pass GFP_KERNEL for transaction allocation if
caller can handler failures
Hi Jan,
Below is the updated patch based on your feedback.
On Tue, Jan 25, 2011 at 8:17 AM, Jan Kara <jack@...e.cz> wrote:
> Hi,
>
> On Sat 22-01-11 19:34:55, Manish Katiyar wrote:
>> Pass GFP_KERNEL for transaction allocation for ext4 routines if caller
>> can handler failures
> Some error recovery paths will need cleaning up before you actually start
> using them - see below:
>
>> diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
>> index e0270d1..1a4a944 100644
>> --- a/fs/ext4/acl.c
>> +++ b/fs/ext4/acl.c
>> @@ -351,7 +351,7 @@ ext4_acl_chmod(struct inode *inode)
>>
>> retry:
>> handle = ext4_journal_start(inode,
>> - EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
>> + EXT4_DATA_TRANS_BLOCKS(inode->i_sb), true);
>> if (IS_ERR(handle)) {
>> error = PTR_ERR(handle);
>> ext4_std_error(inode->i_sb, error);
> We shouldn't call ext4_std_error() (that possibly logs the message in
> the kernel log and remounts the fs read-only, panics the kernel or so) in
> case of ENOMEM...
>
>> @@ -449,7 +449,8 @@ ext4_xattr_set_acl(struct dentry *dentry, const
>> char *name, const void *value,
>> acl = NULL;
>>
>> retry:
>> - handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
>> + handle = ext4_journal_start(inode,
>> + EXT4_DATA_TRANS_BLOCKS(inode->i_sb), true);
>> if (IS_ERR(handle))
>> return PTR_ERR(handle);
> It's actually not your bug, but the above should be:
> error = PTR_ERR(handle);
> goto release_and_out;
>
>> error = ext4_set_acl(handle, inode, type, acl);
>> diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
>> index eb9097a..e0e27a3 100644
>> --- a/fs/ext4/ialloc.c
>> +++ b/fs/ext4/ialloc.c
>> @@ -1257,7 +1257,7 @@ extern int ext4_init_inode_table(struct
>> super_block *sb, ext4_group_t group,
>> if (gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))
>> goto out;
>>
>> - handle = ext4_journal_start_sb(sb, 1);
>> + handle = ext4_journal_start_sb(sb, 1, true);
>> if (IS_ERR(handle)) {
>> ret = PTR_ERR(handle);
>> goto out;
> Well, this might be disputable. This function is used to lazily
> initialize inode table. If the initialization fails, thread removes the
> request for initialization from the queue. But in case of ENOMEM, it might
> be more suitable to just postpone the initialization work to a more
> suitable time...
I have converted it back to pass false. Will send a separate patch later.
>
>> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
>> index 9f7f9e4..76c20b8 100644
>> --- a/fs/ext4/inode.c
>> +++ b/fs/ext4/inode.c
> ...
>> @@ -1398,7 +1398,7 @@ static int _ext4_get_block(struct inode *inode,
>> sector_t iblock,
>> if (map.m_len > DIO_MAX_BLOCKS)
>> map.m_len = DIO_MAX_BLOCKS;
>> dio_credits = ext4_chunk_trans_blocks(inode, map.m_len);
>> - handle = ext4_journal_start(inode, dio_credits);
>> + handle = ext4_journal_start(inode, dio_credits, false);
>> if (IS_ERR(handle)) {
>> ret = PTR_ERR(handle);
>> return ret;
> Hmm, this would be actually another useful prerequisite cleanup of this
> series. _ext4_get_block() should need to start a transaction only when
> called from direct IO path (otherwise transaction should be already started
> when creating blocks). But this is only implicit so it would be good to
> create ext4_get_block_directIO() which would start a transaction, use it
> as a callback of __blockdev_direct_IO(), and remove the code from standard
> _ext4_get_block() function. Then you can also make ext4_journal_start()
> possibly fail and still it will be clear you do not introduce any potential
> problems.
>
>> @@ -1621,7 +1621,7 @@ static int ext4_write_begin(struct file *file,
>> struct address_space *mapping,
>> to = from + len;
>>
>> retry:
>> - handle = ext4_journal_start(inode, needed_blocks);
>> + handle = ext4_journal_start(inode, needed_blocks, false);
>> if (IS_ERR(handle)) {
>> ret = PTR_ERR(handle);
>> goto out;
> Failing this with ENOMEM is OK. Note that grab_cache_page_write_begin()
> called just below can fail with ENOMEM as well.
Using the same reasoning, I also changed ext4_da_write_begin().
>
>> @@ -3553,7 +3554,7 @@ static ssize_t ext4_ind_direct_IO(int rw, struct
>> kiocb *iocb,
>>
>> if (final_size > inode->i_size) {
>> /* Credits for sb + inode write */
>> - handle = ext4_journal_start(inode, 2);
>> + handle = ext4_journal_start(inode, 2, false);
>> if (IS_ERR(handle)) {
>> ret = PTR_ERR(handle);
>> goto out;
> This can fail without introducing problems. It's standard directIO write
> path.
>
>> @@ -3596,7 +3597,7 @@ retry:
>> int err;
>>
>> /* Credits for sb + inode write */
>> - handle = ext4_journal_start(inode, 2);
>> + handle = ext4_journal_start(inode, 2, false);
>> if (IS_ERR(handle)) {
>> /* This is really bad luck. We've written the data
>> * but cannot extend i_size. Bail out and pretend
> This one can fail just fine as well.
>
>> @@ -5329,8 +5330,10 @@ int ext4_setattr(struct dentry *dentry, struct
>> iattr *attr)
>>
>> /* (user+group)*(old+new) structure, inode write (sb,
>> * inode block, ? - but truncate inode update has it) */
>> - handle = ext4_journal_start(inode, (EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
>> - EXT4_MAXQUOTAS_DEL_BLOCKS(inode->i_sb))+3);
>> + handle = ext4_journal_start(inode,
>> + (EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
>> + EXT4_MAXQUOTAS_DEL_BLOCKS(inode->i_sb))+3,
>> + true);
>> if (IS_ERR(handle)) {
>> error = PTR_ERR(handle);
>> goto err_out;
>> @@ -5365,7 +5368,7 @@ int ext4_setattr(struct dentry *dentry, struct
>> iattr *attr)
>> (ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS)))) {
>> handle_t *handle;
>>
>> - handle = ext4_journal_start(inode, 3);
>> + handle = ext4_journal_start(inode, 3, true);
>> if (IS_ERR(handle)) {
>> error = PTR_ERR(handle);
>> goto err_out;
> The above two sites are fine but note that err_out calls ext4_std_error()
> which we don't want to happen in case of ENOMEM.
>
>> @@ -5822,7 +5825,7 @@ int ext4_change_inode_journal_flag(struct inode
>> *inode, int val)
>>
>> /* Finally we can mark the inode as dirty. */
>>
>> - handle = ext4_journal_start(inode, 1);
>> + handle = ext4_journal_start(inode, 1, true);
>> if (IS_ERR(handle))
>> return PTR_ERR(handle);
> This can fail OK, but you should undo inode flag and aops change before
> returning error (that would be probably better as a separate preparatory
> patch because it won't be completely trivial - you need to lock the updates
> again etc. possibly create a helper function for that so that you don't
> duplicate the code).
Changed back to pass false. Will do the cleanup and error handling as
part of separate patch once I start understanding the code better.
For ext4 functions which can handle transaction allocation failures,
pass GFP_KERNEL flag for transaction allocation dring journal start.
Otherwise GFP_NOFS is passed which retries in a loop till allocation
succeeds.
Signed-off-by: Manish Katiyar <mkatiyar@...il.com>
---
fs/ext4/acl.c | 12 +++++++-----
fs/ext4/ext4_jbd2.h | 9 +++++----
fs/ext4/extents.c | 8 ++++----
fs/ext4/ialloc.c | 2 +-
fs/ext4/inode.c | 37 +++++++++++++++++++++----------------
fs/ext4/ioctl.c | 4 ++--
fs/ext4/migrate.c | 4 ++--
fs/ext4/move_extent.c | 2 +-
fs/ext4/namei.c | 24 +++++++++++++++---------
fs/ext4/resize.c | 8 ++++----
fs/ext4/super.c | 13 +++++++------
fs/ext4/xattr.c | 3 ++-
12 files changed, 71 insertions(+), 55 deletions(-)
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index e0270d1..0f7aac2 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -351,10 +351,9 @@ ext4_acl_chmod(struct inode *inode)
retry:
handle = ext4_journal_start(inode,
- EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb), true);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
- ext4_std_error(inode->i_sb, error);
goto out;
}
error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
@@ -449,9 +448,12 @@ ext4_xattr_set_acl(struct dentry *dentry, const
char *name, const void *value,
acl = NULL;
retry:
- handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
+ handle = ext4_journal_start(inode,
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb), true);
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ goto release_and_out;
+ }
error = ext4_set_acl(handle, inode, type, acl);
ext4_journal_stop(handle);
if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index d8b992e..38f128e 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -161,7 +161,7 @@ int __ext4_handle_dirty_super(const char *where,
unsigned int line,
#define ext4_handle_dirty_super(handle, sb) \
__ext4_handle_dirty_super(__func__, __LINE__, (handle), (sb))
-handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
+handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks,
bool errok);
int __ext4_journal_stop(const char *where, unsigned int line,
handle_t *handle);
#define EXT4_NOJOURNAL_MAX_REF_COUNT ((unsigned long) 4096)
@@ -209,9 +209,10 @@ static inline void
ext4_journal_release_buffer(handle_t *handle,
jbd2_journal_release_buffer(handle, bh);
}
-static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
+static inline handle_t *ext4_journal_start(struct inode *inode,
+ int nblocks, bool errok)
{
- return ext4_journal_start_sb(inode->i_sb, nblocks);
+ return ext4_journal_start_sb(inode->i_sb, nblocks, errok);
}
#define ext4_journal_stop(handle) \
@@ -232,7 +233,7 @@ static inline int ext4_journal_extend(handle_t
*handle, int nblocks)
static inline int ext4_journal_restart(handle_t *handle, int nblocks)
{
if (ext4_handle_valid(handle))
- return jbd2_journal_restart(handle, nblocks);
+ return jbd2_journal_restart(handle, nblocks, false);
return 0;
}
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 63a7581..5944b1c 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2333,7 +2333,7 @@ static int ext4_ext_remove_space(struct inode
*inode, ext4_lblk_t start)
ext_debug("truncate since %u\n", start);
/* probably first extent we're gonna free will be last in block */
- handle = ext4_journal_start(inode, depth + 1);
+ handle = ext4_journal_start(inode, depth + 1, false);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -3544,7 +3544,7 @@ void ext4_ext_truncate(struct inode *inode)
* probably first extent we're gonna free will be last in block
*/
err = ext4_writepage_trans_blocks(inode);
- handle = ext4_journal_start(inode, err);
+ handle = ext4_journal_start(inode, err, false);
if (IS_ERR(handle))
return;
@@ -3677,7 +3677,7 @@ retry:
while (ret >= 0 && ret < max_blocks) {
map.m_lblk = map.m_lblk + ret;
map.m_len = max_blocks = max_blocks - ret;
- handle = ext4_journal_start(inode, credits);
+ handle = ext4_journal_start(inode, credits, true);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
break;
@@ -3752,7 +3752,7 @@ int ext4_convert_unwritten_extents(struct inode
*inode, loff_t offset,
while (ret >= 0 && ret < max_blocks) {
map.m_lblk += ret;
map.m_len = (max_blocks -= ret);
- handle = ext4_journal_start(inode, credits);
+ handle = ext4_journal_start(inode, credits, false);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
break;
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index eb9097a..4499dcd 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1257,7 +1257,7 @@ extern int ext4_init_inode_table(struct
super_block *sb, ext4_group_t group,
if (gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))
goto out;
- handle = ext4_journal_start_sb(sb, 1);
+ handle = ext4_journal_start_sb(sb, 1, false);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9f7f9e4..12a9b74 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -129,7 +129,7 @@ static handle_t *start_transaction(struct inode *inode)
{
handle_t *result;
- result = ext4_journal_start(inode, blocks_for_truncate(inode));
+ result = ext4_journal_start(inode, blocks_for_truncate(inode), false);
if (!IS_ERR(result))
return result;
@@ -204,7 +204,7 @@ void ext4_evict_inode(struct inode *inode)
if (is_bad_inode(inode))
goto no_delete;
- handle = ext4_journal_start(inode, blocks_for_truncate(inode)+3);
+ handle = ext4_journal_start(inode, blocks_for_truncate(inode)+3, false);
if (IS_ERR(handle)) {
ext4_std_error(inode->i_sb, PTR_ERR(handle));
/*
@@ -1398,7 +1398,7 @@ static int _ext4_get_block(struct inode *inode,
sector_t iblock,
if (map.m_len > DIO_MAX_BLOCKS)
map.m_len = DIO_MAX_BLOCKS;
dio_credits = ext4_chunk_trans_blocks(inode, map.m_len);
- handle = ext4_journal_start(inode, dio_credits);
+ handle = ext4_journal_start(inode, dio_credits, false);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
return ret;
@@ -1621,7 +1621,7 @@ static int ext4_write_begin(struct file *file,
struct address_space *mapping,
to = from + len;
retry:
- handle = ext4_journal_start(inode, needed_blocks);
+ handle = ext4_journal_start(inode, needed_blocks, true);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
@@ -2653,7 +2653,8 @@ static int __ext4_journalled_writepage(struct page *page,
* references to buffers so we are safe */
unlock_page(page);
- handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
+ handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode),
+ false);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
@@ -3049,7 +3050,7 @@ retry:
needed_blocks = ext4_da_writepages_trans_blocks(inode);
/* start a new transaction*/
- handle = ext4_journal_start(inode, needed_blocks);
+ handle = ext4_journal_start(inode, needed_blocks, false);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
ext4_msg(inode->i_sb, KERN_CRIT, "%s: jbd2_start: "
@@ -3204,7 +3205,7 @@ retry:
* to journalling the i_disksize update if writes to the end
* of file which has an already mapped buffer.
*/
- handle = ext4_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1, true);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
@@ -3553,7 +3554,7 @@ static ssize_t ext4_ind_direct_IO(int rw, struct
kiocb *iocb,
if (final_size > inode->i_size) {
/* Credits for sb + inode write */
- handle = ext4_journal_start(inode, 2);
+ handle = ext4_journal_start(inode, 2, true);
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
goto out;
@@ -3596,7 +3597,7 @@ retry:
int err;
/* Credits for sb + inode write */
- handle = ext4_journal_start(inode, 2);
+ handle = ext4_journal_start(inode, 2, true);
if (IS_ERR(handle)) {
/* This is really bad luck. We've written the data
* but cannot extend i_size. Bail out and pretend
@@ -5329,8 +5330,10 @@ int ext4_setattr(struct dentry *dentry, struct
iattr *attr)
/* (user+group)*(old+new) structure, inode write (sb,
* inode block, ? - but truncate inode update has it) */
- handle = ext4_journal_start(inode, (EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
- EXT4_MAXQUOTAS_DEL_BLOCKS(inode->i_sb))+3);
+ handle = ext4_journal_start(inode,
+ (EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
+ EXT4_MAXQUOTAS_DEL_BLOCKS(inode->i_sb))+3,
+ true);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
goto err_out;
@@ -5365,7 +5368,7 @@ int ext4_setattr(struct dentry *dentry, struct
iattr *attr)
(ext4_test_inode_flag(inode, EXT4_INODE_EOFBLOCKS)))) {
handle_t *handle;
- handle = ext4_journal_start(inode, 3);
+ handle = ext4_journal_start(inode, 3, true);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
goto err_out;
@@ -5385,7 +5388,7 @@ int ext4_setattr(struct dentry *dentry, struct
iattr *attr)
attr->ia_size);
if (error) {
/* Do as much error cleanup as possible */
- handle = ext4_journal_start(inode, 3);
+ handle = ext4_journal_start(inode, 3, false);
if (IS_ERR(handle)) {
ext4_orphan_del(NULL, inode);
goto err_out;
@@ -5421,7 +5424,9 @@ int ext4_setattr(struct dentry *dentry, struct
iattr *attr)
rc = ext4_acl_chmod(inode);
err_out:
- ext4_std_error(inode->i_sb, error);
+ if (error != -ENOMEM) {
+ ext4_std_error(inode->i_sb, error);
+ }
if (!error)
error = rc;
return error;
@@ -5738,7 +5743,7 @@ void ext4_dirty_inode(struct inode *inode)
{
handle_t *handle;
- handle = ext4_journal_start(inode, 2);
+ handle = ext4_journal_start(inode, 2, false);
if (IS_ERR(handle))
goto out;
@@ -5822,7 +5827,7 @@ int ext4_change_inode_journal_flag(struct inode
*inode, int val)
/* Finally we can mark the inode as dirty. */
- handle = ext4_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1, false);
if (IS_ERR(handle))
return PTR_ERR(handle);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index eb3bc2f..a357b9a 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -101,7 +101,7 @@ long ext4_ioctl(struct file *filp, unsigned int
cmd, unsigned long arg)
} else if (oldflags & EXT4_EOFBLOCKS_FL)
ext4_truncate(inode);
- handle = ext4_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1, true);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto flags_out;
@@ -157,7 +157,7 @@ flags_out:
goto setversion_out;
}
- handle = ext4_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1, true);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto setversion_out;
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index b0a126f..729dcbc 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -488,7 +488,7 @@ int ext4_ext_migrate(struct inode *inode)
EXT4_DATA_TRANS_BLOCKS(inode->i_sb) +
EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)
- + 1);
+ + 1, true);
if (IS_ERR(handle)) {
retval = PTR_ERR(handle);
return retval;
@@ -533,7 +533,7 @@ int ext4_ext_migrate(struct inode *inode)
ext4_set_inode_state(inode, EXT4_STATE_EXT_MIGRATE);
up_read((&EXT4_I(inode)->i_data_sem));
- handle = ext4_journal_start(inode, 1);
+ handle = ext4_journal_start(inode, 1, true);
if (IS_ERR(handle)) {
/*
* It is impossible to update on-disk structures without
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index b9f3e78..d5aad4d 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -813,7 +813,7 @@ move_extent_per_page(struct file *o_filp, struct
inode *donor_inode,
* inode and donor_inode may change each different metadata blocks.
*/
jblocks = ext4_writepage_trans_blocks(orig_inode) * 2;
- handle = ext4_journal_start(orig_inode, jblocks);
+ handle = ext4_journal_start(orig_inode, jblocks, true);
if (IS_ERR(handle)) {
*err = PTR_ERR(handle);
return 0;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5485390..a3ad11f 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1739,7 +1739,8 @@ static int ext4_create(struct inode *dir, struct
dentry *dentry, int mode,
retry:
handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
+ EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb),
+ true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -1775,7 +1776,8 @@ static int ext4_mknod(struct inode *dir, struct
dentry *dentry,
retry:
handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
+ EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb),
+ true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -1814,7 +1816,8 @@ static int ext4_mkdir(struct inode *dir, struct
dentry *dentry, int mode)
retry:
handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 +
- EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
+ EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb),
+ true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -2127,7 +2130,8 @@ static int ext4_rmdir(struct inode *dir, struct
dentry *dentry)
dquot_initialize(dir);
dquot_initialize(dentry->d_inode);
- handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir,
+ EXT4_DELETE_TRANS_BLOCKS(dir->i_sb), true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -2188,7 +2192,8 @@ static int ext4_unlink(struct inode *dir, struct
dentry *dentry)
dquot_initialize(dir);
dquot_initialize(dentry->d_inode);
- handle = ext4_journal_start(dir, EXT4_DELETE_TRANS_BLOCKS(dir->i_sb));
+ handle = ext4_journal_start(dir,
+ EXT4_DELETE_TRANS_BLOCKS(dir->i_sb), true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -2246,8 +2251,9 @@ static int ext4_symlink(struct inode *dir,
retry:
handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT4_INDEX_EXTRA_TRANS_BLOCKS + 5 +
- EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 5 +
+ EXT4_MAXQUOTAS_INIT_BLOCKS(dir->i_sb),
+ true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -2313,7 +2319,7 @@ static int ext4_link(struct dentry *old_dentry,
retry:
handle = ext4_journal_start(dir, EXT4_DATA_TRANS_BLOCKS(dir->i_sb) +
- EXT4_INDEX_EXTRA_TRANS_BLOCKS);
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS, true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -2365,7 +2371,7 @@ static int ext4_rename(struct inode *old_dir,
struct dentry *old_dentry,
dquot_initialize(new_dentry->d_inode);
handle = ext4_journal_start(old_dir, 2 *
EXT4_DATA_TRANS_BLOCKS(old_dir->i_sb) +
- EXT4_INDEX_EXTRA_TRANS_BLOCKS + 2);
+ EXT4_INDEX_EXTRA_TRANS_BLOCKS + 2, true);
if (IS_ERR(handle))
return PTR_ERR(handle);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 3ecc6e4..e50d083 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -176,7 +176,7 @@ static int setup_new_group_blocks(struct super_block *sb,
int err = 0, err2;
/* This transaction may be extended/restarted along the way */
- handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA);
+ handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA, true);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -655,7 +655,7 @@ static void update_backups(struct super_block *sb,
handle_t *handle;
int err = 0, err2;
- handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA);
+ handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA, true);
if (IS_ERR(handle)) {
group = 1;
err = PTR_ERR(handle);
@@ -793,7 +793,7 @@ int ext4_group_add(struct super_block *sb, struct
ext4_new_group_data *input)
*/
handle = ext4_journal_start_sb(sb,
ext4_bg_has_super(sb, input->group) ?
- 3 + reserved_gdb : 4);
+ 3 + reserved_gdb : 4, true);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
goto exit_put;
@@ -1031,7 +1031,7 @@ int ext4_group_extend(struct super_block *sb,
struct ext4_super_block *es,
/* We will update the superblock, one block bitmap, and
* one group descriptor via ext4_free_blocks().
*/
- handle = ext4_journal_start_sb(sb, 3);
+ handle = ext4_journal_start_sb(sb, 3, true);
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
ext4_warning(sb, "error %d on journal start", err);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index cb10a06..eacfea7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -241,7 +241,7 @@ static void ext4_put_nojournal(handle_t *handle)
* that sync() will call the filesystem's write_super callback if
* appropriate.
*/
-handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
+handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks,
bool errok)
{
journal_t *journal;
@@ -258,7 +258,7 @@ handle_t *ext4_journal_start_sb(struct super_block
*sb, int nblocks)
ext4_abort(sb, "Detected aborted journal");
return ERR_PTR(-EROFS);
}
- return jbd2_journal_start(journal, nblocks);
+ return jbd2_journal_start(journal, nblocks, errok);
}
return ext4_get_nojournal();
}
@@ -4471,7 +4471,8 @@ static int ext4_write_dquot(struct dquot *dquot)
inode = dquot_to_inode(dquot);
handle = ext4_journal_start(inode,
- EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
+ EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb),
+ false);
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit(dquot);
@@ -4487,7 +4488,7 @@ static int ext4_acquire_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext4_journal_start(dquot_to_inode(dquot),
- EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb));
+ EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb), false);
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_acquire(dquot);
@@ -4503,7 +4504,7 @@ static int ext4_release_dquot(struct dquot *dquot)
handle_t *handle;
handle = ext4_journal_start(dquot_to_inode(dquot),
- EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
+ EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb), false);
if (IS_ERR(handle)) {
/* Release dquot anyway to avoid endless cycle in dqput() */
dquot_release(dquot);
@@ -4534,7 +4535,7 @@ static int ext4_write_info(struct super_block
*sb, int type)
handle_t *handle;
/* Data block + inode block */
- handle = ext4_journal_start(sb->s_root->d_inode, 2);
+ handle = ext4_journal_start(sb->s_root->d_inode, 2, false);
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit_info(sb, type);
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index fc32176..0e39f57 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1084,7 +1084,8 @@ ext4_xattr_set(struct inode *inode, int
name_index, const char *name,
int error, retries = 0;
retry:
- handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
+ handle = ext4_journal_start(inode,
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb), true);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
} else {
--
1.6.0.4
Thanks -
Manish
>
>> diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
>> index eb3bc2f..3e7977b 100644
>> --- a/fs/ext4/ioctl.c
>> +++ b/fs/ext4/ioctl.c
>> @@ -101,7 +101,7 @@ long ext4_ioctl(struct file *filp, unsigned int
>> cmd, unsigned long arg)
>> } else if (oldflags & EXT4_EOFBLOCKS_FL)
>> ext4_truncate(inode);
>>
>> - handle = ext4_journal_start(inode, 1);
>> + handle = ext4_journal_start(inode, 1, false);
>> if (IS_ERR(handle)) {
>> err = PTR_ERR(handle);
>> goto flags_out;
> This can handle failure just fine...
>
>> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
>> index cb10a06..7714a15 100644
>> --- a/fs/ext4/super.c
>> +++ b/fs/ext4/super.c
>> @@ -4487,7 +4488,7 @@ static int ext4_acquire_dquot(struct dquot *dquot)
>> handle_t *handle;
>>
>> handle = ext4_journal_start(dquot_to_inode(dquot),
>> - EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb));
>> + EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb), true);
>> if (IS_ERR(handle))
>> return PTR_ERR(handle);
>> ret = dquot_acquire(dquot);
>> @@ -4503,7 +4504,7 @@ static int ext4_release_dquot(struct dquot *dquot)
>> handle_t *handle;
>>
>> handle = ext4_journal_start(dquot_to_inode(dquot),
>> - EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb));
>> + EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb), true);
>> if (IS_ERR(handle)) {
>> /* Release dquot anyway to avoid endless cycle in dqput() */
>> dquot_release(dquot);
> For now put 'false' in these quota functions. Because failure here
> results in a failure of dquot_initialize() which is not tested in most
> places and thus results in quota miscomputations... Properly handling this
> would require another set of cleanups.
>
> Honza
> --
> Jan Kara <jack@...e.cz>
> SUSE Labs, CR
>
--
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