Instead of a bunch of ifdefs, make the unicode built checks part of the code flow where possible, as requested by Torvalds.
Reviewed-by: Eric Biggers <[email protected]> Signed-off-by: Gabriel Krisman Bertazi <[email protected]> --- Changes since v8: - Rebase on top of 3030b59c8533 ("ext4: cleanup function defs from ext4.h into crypto.c") Changes since v5: - Drop err variable (eric) Changes since v4: - Create stub for !CONFIG_UNICODE case (eric) --- fs/ext4/crypto.c | 15 +++------------ fs/ext4/ext4.h | 32 ++++++++++++++++++++------------ fs/ext4/namei.c | 15 ++++++--------- fs/ext4/super.c | 4 +--- 4 files changed, 30 insertions(+), 36 deletions(-) diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c index e20ac0654b3f..c65d8a5f8315 100644 --- a/fs/ext4/crypto.c +++ b/fs/ext4/crypto.c @@ -31,10 +31,7 @@ int ext4_fname_setup_filename(struct inode *dir, const struct qstr *iname, ext4_fname_from_fscrypt_name(fname, &name); -#if IS_ENABLED(CONFIG_UNICODE) - err = ext4_fname_setup_ci_filename(dir, iname, fname); -#endif - return err; + return ext4_fname_setup_ci_filename(dir, iname, fname); } int ext4_fname_prepare_lookup(struct inode *dir, struct dentry *dentry, @@ -49,10 +46,7 @@ int ext4_fname_prepare_lookup(struct inode *dir, struct dentry *dentry, ext4_fname_from_fscrypt_name(fname, &name); -#if IS_ENABLED(CONFIG_UNICODE) - err = ext4_fname_setup_ci_filename(dir, &dentry->d_name, fname); -#endif - return err; + return ext4_fname_setup_ci_filename(dir, &dentry->d_name, fname); } void ext4_fname_free_filename(struct ext4_filename *fname) @@ -66,10 +60,7 @@ void ext4_fname_free_filename(struct ext4_filename *fname) fname->usr_fname = NULL; fname->disk_name.name = NULL; -#if IS_ENABLED(CONFIG_UNICODE) - kfree(fname->cf_name.name); - fname->cf_name.name = NULL; -#endif + ext4_fname_free_ci_filename(fname); } static bool uuid_is_zero(__u8 u[16]) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 9717b9832425..f2a673ac67fe 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2734,8 +2734,24 @@ ext4_fsblk_t ext4_inode_to_goal_block(struct inode *); #if IS_ENABLED(CONFIG_UNICODE) extern int ext4_fname_setup_ci_filename(struct inode *dir, - const struct qstr *iname, - struct ext4_filename *fname); + const struct qstr *iname, + struct ext4_filename *fname); + +static inline void ext4_fname_free_ci_filename(struct ext4_filename *fname) +{ + kfree(fname->cf_name.name); + fname->cf_name.name = NULL; +} +#else +static inline int ext4_fname_setup_ci_filename(struct inode *dir, + const struct qstr *iname, + struct ext4_filename *fname) +{ + return 0; +} +static inline void ext4_fname_free_ci_filename(struct ext4_filename *fname) +{ +} #endif /* ext4 encryption related stuff goes here crypto.c */ @@ -2758,16 +2774,11 @@ static inline int ext4_fname_setup_filename(struct inode *dir, int lookup, struct ext4_filename *fname) { - int err = 0; fname->usr_fname = iname; fname->disk_name.name = (unsigned char *) iname->name; fname->disk_name.len = iname->len; -#if IS_ENABLED(CONFIG_UNICODE) - err = ext4_fname_setup_ci_filename(dir, iname, fname); -#endif - - return err; + return ext4_fname_setup_ci_filename(dir, iname, fname); } static inline int ext4_fname_prepare_lookup(struct inode *dir, @@ -2779,10 +2790,7 @@ static inline int ext4_fname_prepare_lookup(struct inode *dir, static inline void ext4_fname_free_filename(struct ext4_filename *fname) { -#if IS_ENABLED(CONFIG_UNICODE) - kfree(fname->cf_name.name); - fname->cf_name.name = NULL; -#endif + ext4_fname_free_ci_filename(fname); } static inline int ext4_ioctl_get_encryption_pwsalt(struct file *filp, diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 959346950b3c..100715586473 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1811,8 +1811,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi } } -#if IS_ENABLED(CONFIG_UNICODE) - if (!inode && IS_CASEFOLDED(dir)) { + if (IS_ENABLED(CONFIG_UNICODE) && !inode && IS_CASEFOLDED(dir)) { /* Eventually we want to call d_add_ci(dentry, NULL) * for negative dentries in the encoding case as * well. For now, prevent the negative dentry @@ -1820,7 +1819,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi */ return NULL; } -#endif + return d_splice_alias(inode, dentry); } @@ -3138,16 +3137,14 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry) ext4_fc_track_unlink(handle, dentry); retval = ext4_mark_inode_dirty(handle, dir); -#if IS_ENABLED(CONFIG_UNICODE) /* VFS negative dentries are incompatible with Encoding and * Case-insensitiveness. Eventually we'll want avoid * invalidating the dentries here, alongside with returning the * negative dentries at ext4_lookup(), when it is better * supported by the VFS for the CI case. */ - if (IS_CASEFOLDED(dir)) + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) d_invalidate(dentry); -#endif end_rmdir: brelse(bh); @@ -3243,16 +3240,16 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry) retval = __ext4_unlink(handle, dir, &dentry->d_name, d_inode(dentry)); if (!retval) ext4_fc_track_unlink(handle, dentry); -#if IS_ENABLED(CONFIG_UNICODE) + /* VFS negative dentries are incompatible with Encoding and * Case-insensitiveness. Eventually we'll want avoid * invalidating the dentries here, alongside with returning the * negative dentries at ext4_lookup(), when it is better * supported by the VFS for the CI case. */ - if (IS_CASEFOLDED(dir)) + if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) d_invalidate(dentry); -#endif + if (handle) ext4_journal_stop(handle); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9a66abcca1a8..6c8f5fa5e455 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3569,14 +3569,12 @@ int ext4_feature_set_ok(struct super_block *sb, int readonly) return 0; } -#if !IS_ENABLED(CONFIG_UNICODE) - if (ext4_has_feature_casefold(sb)) { + if (!IS_ENABLED(CONFIG_UNICODE) && ext4_has_feature_casefold(sb)) { ext4_msg(sb, KERN_ERR, "Filesystem with casefold feature cannot be " "mounted without CONFIG_UNICODE"); return 0; } -#endif if (readonly) return 1; -- 2.37.3 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
