[PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs
calls replace_mount_options(), but they then implement their own
->show_options() methods and don't touch s_options, rendering the saved
options unnecessary. I'm trying to eliminate s_options to make it easier
to implement a context-based mount where the mount options can be passed
individually over a file descriptor.
Remove the calls to save/replace_mount_options() call in these cases.
Signed-off-by: David Howells
cc: Chris Mason
cc: Greg Kroah-Hartman
cc: Steven Rostedt
cc: linux-btrfs@vger.kernel.org
cc: reiserfs-de...@vger.kernel.org
---
fs/btrfs/super.c|1 -
fs/debugfs/inode.c |2 --
fs/reiserfs/super.c |4
fs/tracefs/inode.c |2 --
4 files changed, 9 deletions(-)
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 4f1cdd5058f1..8e9758b3eb23 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1164,7 +1164,6 @@ static int btrfs_fill_super(struct super_block *sb,
goto fail_close;
}
- save_mount_options(sb, data);
cleancache_init_fs(sb);
sb->s_flags |= MS_ACTIVE;
return 0;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index e892ae7d89f8..0dc9e9c0e0f8 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -203,8 +203,6 @@ static int debug_fill_super(struct super_block *sb, void
*data, int silent)
struct debugfs_fs_info *fsi;
int err;
- save_mount_options(sb, data);
-
fsi = kzalloc(sizeof(struct debugfs_fs_info), GFP_KERNEL);
sb->s_fs_info = fsi;
if (!fsi) {
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 685f1e056998..306e4e9d172d 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1599,8 +1599,6 @@ static int reiserfs_remount(struct super_block *s, int
*mount_flags, char *arg)
}
out_ok_unlocked:
- if (new_opts)
- replace_mount_options(s, new_opts);
return 0;
out_err_unlock:
@@ -1916,8 +1914,6 @@ static int reiserfs_fill_super(struct super_block *s,
void *data, int silent)
char *qf_names[REISERFS_MAXQUOTAS] = {};
unsigned int qfmt = 0;
- save_mount_options(s, data);
-
sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 328e89c2cf83..bea8ad876bf9 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -270,8 +270,6 @@ static int trace_fill_super(struct super_block *sb, void
*data, int silent)
struct tracefs_fs_info *fsi;
int err;
- save_mount_options(sb, data);
-
fsi = kzalloc(sizeof(struct tracefs_fs_info), GFP_KERNEL);
sb->s_fs_info = fsi;
if (!fsi) {
--
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Re: [PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
On Wed, 05 Jul 2017 16:24:09 +0100 David Howells wrote: > btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs > calls replace_mount_options(), but they then implement their own > ->show_options() methods and don't touch s_options, rendering the saved > options unnecessary. I'm trying to eliminate s_options to make it easier > to implement a context-based mount where the mount options can be passed > individually over a file descriptor. > > Remove the calls to save/replace_mount_options() call in these cases. > As this is patch 1/14, is there any dependency on this working? That is, it is safe to simply remove this caller from those locations? Or are there dependencies on having any of the 2-14 patches added to make it not cause issues? -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
Steven Rostedt wrote: > As this is patch 1/14, is there any dependency on this working? That > is, it is safe to simply remove this caller from those locations? Or > are there dependencies on having any of the 2-14 patches added to make > it not cause issues? Patch 14 removes the then-unused helpers, but patches 1-13 otherwise are independent of each other and have no dependencies on earlier patches. David -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
On Wed, Jul 05, 2017 at 04:24:09PM +0100, David Howells wrote: > btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs > calls replace_mount_options(), but they then implement their own > ->show_options() methods and don't touch s_options, rendering the saved > options unnecessary. I'm trying to eliminate s_options to make it easier > to implement a context-based mount where the mount options can be passed > individually over a file descriptor. > > Remove the calls to save/replace_mount_options() call in these cases. > > Signed-off-by: David Howells > cc: Chris Mason > cc: Greg Kroah-Hartman > cc: Steven Rostedt > cc: linux-btrfs@vger.kernel.org > cc: reiserfs-de...@vger.kernel.org For debugfs: Acked-by: Greg Kroah-Hartman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
On Wed, 05 Jul 2017 16:33:29 +0100 David Howells wrote: > Steven Rostedt wrote: > > > As this is patch 1/14, is there any dependency on this working? That > > is, it is safe to simply remove this caller from those locations? Or > > are there dependencies on having any of the 2-14 patches added to make > > it not cause issues? > > Patch 14 removes the then-unused helpers, but patches 1-13 otherwise are > independent of each other and have no dependencies on earlier patches. > So basically it's an useless function call wrt tracefs. In that case... Acked-by: Steven Rostedt (VMware) -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 01/14] VFS: Don't use save/replace_mount_options if not using generic_show_options
On Wed, Jul 05, 2017 at 04:24:09PM +0100, David Howells wrote: > btrfs, debugfs, reiserfs and tracefs call save_mount_options() and reiserfs > calls replace_mount_options(), but they then implement their own > ->show_options() methods and don't touch s_options, rendering the saved > options unnecessary. I'm trying to eliminate s_options to make it easier > to implement a context-based mount where the mount options can be passed > individually over a file descriptor. > > Remove the calls to save/replace_mount_options() call in these cases. > > Signed-off-by: David Howells > cc: Chris Mason > cc: Greg Kroah-Hartman > cc: Steven Rostedt > cc: linux-btrfs@vger.kernel.org > cc: reiserfs-de...@vger.kernel.org > --- For > fs/btrfs/super.c|1 - Acked-by: David Sterba -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
