diff options
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 3acbf4e0..93d12fa 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -43,6 +43,7 @@ #include "xfs_log.h" #include "xfs_filestream.h" #include "xfs_rmap.h" +#include "xfs_ag_resv.h" /* * File system operations @@ -630,6 +631,11 @@ xfs_growfs_data_private( xfs_set_low_space_thresholds(mp); mp->m_alloc_set_aside = xfs_alloc_set_aside(mp); + /* Reserve AG metadata blocks. */ + error = xfs_fs_reserve_ag_blocks(mp); + if (error && error != -ENOSPC) + goto out; + /* update secondary superblocks. */ for (agno = 1; agno < nagcount; agno++) { error = 0; @@ -680,6 +686,8 @@ xfs_growfs_data_private( continue; } } + + out: return saved_error ? saved_error : error; error0: @@ -989,3 +997,59 @@ xfs_do_force_shutdown( "Please umount the filesystem and rectify the problem(s)"); } } + +/* + * Reserve free space for per-AG metadata. + */ +int +xfs_fs_reserve_ag_blocks( + struct xfs_mount *mp) +{ + xfs_agnumber_t agno; + struct xfs_perag *pag; + int error = 0; + int err2; + + for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) { + pag = xfs_perag_get(mp, agno); + err2 = xfs_ag_resv_init(pag); + xfs_perag_put(pag); + if (err2 && !error) + error = err2; + } + + if (error && error != -ENOSPC) { + xfs_warn(mp, + "Error %d reserving per-AG metadata reserve pool.", error); + xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); + } + + return error; +} + +/* + * Free space reserved for per-AG metadata. + */ +int +xfs_fs_unreserve_ag_blocks( + struct xfs_mount *mp) +{ + xfs_agnumber_t agno; + struct xfs_perag *pag; + int error = 0; + int err2; + + for (agno = 0; agno < mp->m_sb.sb_agcount; agno++) { + pag = xfs_perag_get(mp, agno); + err2 = xfs_ag_resv_free(pag); + xfs_perag_put(pag); + if (err2 && !error) + error = err2; + } + + if (error) + xfs_warn(mp, + "Error %d freeing per-AG metadata reserve pool.", error); + + return error; +} |