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| author | Tahsin Erdogan | 2017-07-06 06:01:59 +0200 |
|---|---|---|
| committer | Theodore Ts'o | 2017-07-06 06:01:59 +0200 |
| commit | af65207c76ce8e6263a3b097ea35365dde9913d0 (patch) | |
| tree | 222298b2f179736a158d83341511cd9c7a81eca0 /include/linux/fscrypt_common.h | |
| parent | ext4: skip ext4_init_security() and encryption on ea_inodes (diff) | |
| download | kernel-qcow2-linux-af65207c76ce8e6263a3b097ea35365dde9913d0.tar.gz kernel-qcow2-linux-af65207c76ce8e6263a3b097ea35365dde9913d0.tar.xz kernel-qcow2-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 'include/linux/fscrypt_common.h')
| -rw-r--r-- | include/linux/fscrypt_common.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fscrypt_common.h b/include/linux/fscrypt_common.h index 0a30c106c1e5..82beaf70e7e2 100644 --- a/include/linux/fscrypt_common.h +++ b/include/linux/fscrypt_common.h @@ -83,6 +83,9 @@ struct fscrypt_operations { unsigned (*max_namelen)(struct inode *); }; +/* Maximum value for the third parameter of fscrypt_operations.set_context(). */ +#define FSCRYPT_SET_CONTEXT_MAX_SIZE 28 + static inline bool fscrypt_dummy_context_enabled(struct inode *inode) { if (inode->i_sb->s_cop->dummy_context && |