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| author | Tahsin Erdogan <tahsin@google.com> | 2017-07-06 06:01:59 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-07-06 06:01:59 +0200 |
| commit | af65207c76ce8e6263a3b097ea35365dde9913d0 (patch) | |
| tree | 222298b2f179736a158d83341511cd9c7a81eca0 /fs/ext4/acl.c | |
| parent | ext4: skip ext4_init_security() and encryption on ea_inodes (diff) | |
| download | linux-af65207c76ce8e6263a3b097ea35365dde9913d0.tar.xz linux-af65207c76ce8e6263a3b097ea35365dde9913d0.zip | |
ext4: fix __ext4_new_inode() journal credits calculation
ea_inode feature allows creating extended attributes that are up to
64k in size. Update __ext4_new_inode() to pick increased credit limits.
To avoid overallocating too many journal credits, update
__ext4_xattr_set_credits() to make a distinction between xattr create
vs update. This helps __ext4_new_inode() because all attributes are
known to be new, so we can save credits that are normally needed to
delete old values.
Also, have fscrypt specify its maximum context size so that we don't
end up allocating credits for 64k size.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/acl.c')
| -rw-r--r-- | fs/ext4/acl.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index 8db03e5c78bc..09441ae07a5b 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -183,7 +183,7 @@ ext4_get_acl(struct inode *inode, int type) */ static int __ext4_set_acl(handle_t *handle, struct inode *inode, int type, - struct posix_acl *acl) + struct posix_acl *acl, int xattr_flags) { int name_index; void *value = NULL; @@ -218,7 +218,7 @@ __ext4_set_acl(handle_t *handle, struct inode *inode, int type, } error = ext4_xattr_set_handle(handle, inode, name_index, "", - value, size, 0); + value, size, xattr_flags); kfree(value); if (!error) @@ -238,7 +238,8 @@ ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type) if (error) return error; retry: - error = ext4_xattr_set_credits(inode, acl_size, &credits); + error = ext4_xattr_set_credits(inode, acl_size, false /* is_create */, + &credits); if (error) return error; @@ -246,7 +247,7 @@ retry: if (IS_ERR(handle)) return PTR_ERR(handle); - error = __ext4_set_acl(handle, inode, type, acl); + error = __ext4_set_acl(handle, inode, type, acl, 0 /* xattr_flags */); ext4_journal_stop(handle); if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; @@ -271,13 +272,13 @@ ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir) if (default_acl) { error = __ext4_set_acl(handle, inode, ACL_TYPE_DEFAULT, - default_acl); + default_acl, XATTR_CREATE); posix_acl_release(default_acl); } if (acl) { if (!error) error = __ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, - acl); + acl, XATTR_CREATE); posix_acl_release(acl); } return error; |