From bc98a42c1f7d0f886c0c1b75a92a004976a46d9f Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 17 Jul 2017 08:45:34 +0100 Subject: VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb) Firstly by applying the following with coccinelle's spatch: @@ expression SB; @@ -SB->s_flags & MS_RDONLY +sb_rdonly(SB) to effect the conversion to sb_rdonly(sb), then by applying: @@ expression A, SB; @@ ( -(!sb_rdonly(SB)) && A +!sb_rdonly(SB) && A | -A != (sb_rdonly(SB)) +A != sb_rdonly(SB) | -A == (sb_rdonly(SB)) +A == sb_rdonly(SB) | -!(sb_rdonly(SB)) +!sb_rdonly(SB) | -A && (sb_rdonly(SB)) +A && sb_rdonly(SB) | -A || (sb_rdonly(SB)) +A || sb_rdonly(SB) | -(sb_rdonly(SB)) != A +sb_rdonly(SB) != A | -(sb_rdonly(SB)) == A +sb_rdonly(SB) == A | -(sb_rdonly(SB)) && A +sb_rdonly(SB) && A | -(sb_rdonly(SB)) || A +sb_rdonly(SB) || A ) @@ expression A, B, SB; @@ ( -(sb_rdonly(SB)) ? 1 : 0 +sb_rdonly(SB) | -(sb_rdonly(SB)) ? A : B +sb_rdonly(SB) ? A : B ) to remove left over excess bracketage and finally by applying: @@ expression A, SB; @@ ( -(A & MS_RDONLY) != sb_rdonly(SB) +(bool)(A & MS_RDONLY) != sb_rdonly(SB) | -(A & MS_RDONLY) == sb_rdonly(SB) +(bool)(A & MS_RDONLY) == sb_rdonly(SB) ) to make comparisons against the result of sb_rdonly() (which is a bool) work correctly. Signed-off-by: David Howells --- fs/nilfs2/inode.c | 4 ++-- fs/nilfs2/mdt.c | 2 +- fs/nilfs2/super.c | 19 +++++++++---------- 3 files changed, 12 insertions(+), 13 deletions(-) (limited to 'fs/nilfs2') diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 7ffe71a8dfb9..6a612d832e7d 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -174,7 +174,7 @@ static int nilfs_writepages(struct address_space *mapping, struct inode *inode = mapping->host; int err = 0; - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { nilfs_clear_dirty_pages(mapping, false); return -EROFS; } @@ -191,7 +191,7 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc) struct inode *inode = page->mapping->host; int err; - if (inode->i_sb->s_flags & MS_RDONLY) { + if (sb_rdonly(inode->i_sb)) { /* * It means that filesystem was remounted in read-only * mode because of error or metadata corruption. But we diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c index 98835ed6bef4..c6bc1033e7d2 100644 --- a/fs/nilfs2/mdt.c +++ b/fs/nilfs2/mdt.c @@ -413,7 +413,7 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc) struct super_block *sb; int err = 0; - if (inode && (inode->i_sb->s_flags & MS_RDONLY)) { + if (inode && sb_rdonly(inode->i_sb)) { /* * It means that filesystem was remounted in read-only * mode because of error or metadata corruption. But we diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 926682981d61..4fc018dfcfae 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -136,7 +136,7 @@ void __nilfs_error(struct super_block *sb, const char *function, va_end(args); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { nilfs_set_error(sb); if (nilfs_test_opt(nilfs, ERRORS_RO)) { @@ -478,7 +478,7 @@ static void nilfs_put_super(struct super_block *sb) nilfs_detach_log_writer(sb); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { down_write(&nilfs->ns_sem); nilfs_cleanup_super(sb); up_write(&nilfs->ns_sem); @@ -578,7 +578,7 @@ static int nilfs_freeze(struct super_block *sb) struct the_nilfs *nilfs = sb->s_fs_info; int err; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; /* Mark super block clean */ @@ -592,7 +592,7 @@ static int nilfs_unfreeze(struct super_block *sb) { struct the_nilfs *nilfs = sb->s_fs_info; - if (sb->s_flags & MS_RDONLY) + if (sb_rdonly(sb)) return 0; down_write(&nilfs->ns_sem); @@ -898,7 +898,7 @@ int nilfs_check_feature_compatibility(struct super_block *sb, } features = le64_to_cpu(sbp->s_feature_compat_ro) & ~NILFS_FEATURE_COMPAT_RO_SUPP; - if (!(sb->s_flags & MS_RDONLY) && features) { + if (!sb_rdonly(sb) && features) { nilfs_msg(sb, KERN_ERR, "couldn't mount RDWR because of unsupported optional features (%llx)", (unsigned long long)features); @@ -1083,7 +1083,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent) goto failed_unload; } - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { err = nilfs_attach_log_writer(sb, fsroot); if (err) goto failed_checkpoint; @@ -1095,7 +1095,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent) nilfs_put_root(fsroot); - if (!(sb->s_flags & MS_RDONLY)) { + if (!sb_rdonly(sb)) { down_write(&nilfs->ns_sem); nilfs_setup_super(sb, true); up_write(&nilfs->ns_sem); @@ -1144,7 +1144,7 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data) goto restore_opts; } - if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) + if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb)) goto out; if (*flags & MS_RDONLY) { /* Shutting down log writer */ @@ -1338,8 +1338,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags, if ((flags ^ s->s_flags) & MS_RDONLY) { nilfs_msg(s, KERN_ERR, "the device already has a %s mount.", - (s->s_flags & MS_RDONLY) ? - "read-only" : "read/write"); + sb_rdonly(s) ? "read-only" : "read/write"); err = -EBUSY; goto failed_super; } -- cgit v1.2.3