From bb80e3d6cd0470d268921bce96e4c6bc27d7f7b8 Mon Sep 17 00:00:00 2001 From: Bill O'Donnell Date: Mon, 19 Sep 2016 16:02:22 +1000 Subject: [PATCH] libxcmd: populate fs table with xfs entries first, foreign entries last Commits b20b6c2 and 29647c8 modified xfs_quota for use on non-XFS filesystems. Modifications to fs_initialise_mounts (paths.c) resulted in an xfstest fail (xfs/261), due to foreign fs paths being picked up first from the fs table. The xfs_quota print command then complained about not being able to print the foreign paths, instead of previous behavior (quiet). This patch restores correct behavior, sorting the table so that xfs entries are first, followed by foreign fs entries. The patch maintains the order of xfs entries and foreign entries in the same order as mtab entries. Then, in functions which print all paths we can simply break at the first foreign path if the -f switch is not specified. Signed-off-by: Bill O'Donnell Reviewed-by: Eric Sandeen Signed-off-by: Dave Chinner --- include/path.h | 1 + libxcmd/paths.c | 12 +++++++++++- quota/path.c | 24 ++++++++++++++++++------ 3 files changed, 30 insertions(+), 7 deletions(-) diff --git a/include/path.h b/include/path.h index 39c1a95a1..d077bac4f 100644 --- a/include/path.h +++ b/include/path.h @@ -44,6 +44,7 @@ typedef struct fs_path { } fs_path_t; extern int fs_count; /* number of entries in fs table */ +extern int xfs_fs_count; /* number of xfs entries in fs table */ extern fs_path_t *fs_table; /* array of entries in fs table */ extern fs_path_t *fs_path; /* current entry in the fs table */ extern char *mtab_file; diff --git a/libxcmd/paths.c b/libxcmd/paths.c index 415868823..3455217c7 100644 --- a/libxcmd/paths.c +++ b/libxcmd/paths.c @@ -32,6 +32,7 @@ extern char *progname; int fs_count; +int xfs_fs_count; struct fs_path *fs_table; struct fs_path *fs_path; @@ -138,7 +139,16 @@ fs_table_insert( goto out_norealloc; fs_table = tmp_fs_table; - fs_path = &fs_table[fs_count]; + /* Put foreign filesystems at the end, xfs filesystems at the front */ + if (flags & FS_FOREIGN || fs_count == 0) { + fs_path = &fs_table[fs_count]; + } else { + /* move foreign fs entries down, insert new one just before */ + memmove(&fs_table[xfs_fs_count + 1], &fs_table[xfs_fs_count], + sizeof(fs_path_t)*(fs_count - xfs_fs_count)); + fs_path = &fs_table[xfs_fs_count]; + xfs_fs_count++; + } fs_path->fs_dir = dir; fs_path->fs_prid = prid; fs_path->fs_flags = flags; diff --git a/quota/path.c b/quota/path.c index a623d2551..01ccab4f6 100644 --- a/quota/path.c +++ b/quota/path.c @@ -75,9 +75,15 @@ static int pathlist_f(void) { int i; + struct fs_path *path; - for (i = 0; i < fs_count; i++) - printpath(&fs_table[i], i, 1, &fs_table[i] == fs_path); + for (i = 0; i < fs_count; i++) { + path = &fs_table[i]; + /* Table is ordered xfs first, then foreign */ + if (path->fs_flags & FS_FOREIGN && !foreign_allowed) + break; + printpath(path, i, 1, path == fs_path); + } return 0; } @@ -87,9 +93,14 @@ print_f( char **argv) { int i; + struct fs_path *path; - for (i = 0; i < fs_count; i++) - printpath(&fs_table[i], i, 0, 0); + for (i = 0; i < fs_count; i++) { + path = &fs_table[i]; + if (path->fs_flags & FS_FOREIGN && !foreign_allowed) + break; + printpath(path, i, 0, 0); + } return 0; } @@ -99,6 +110,7 @@ path_f( char **argv) { int i; + int max = foreign_allowed ? fs_count : xfs_fs_count; if (fs_count == 0) { printf(_("No paths are available\n")); @@ -109,9 +121,9 @@ path_f( return pathlist_f(); i = atoi(argv[1]); - if (i < 0 || i >= fs_count) { + if (i < 0 || i >= max) { printf(_("value %d is out of range (0-%d)\n"), - i, fs_count-1); + i, max - 1); } else { fs_path = &fs_table[i]; pathlist_f(); -- 2.39.5