ext4: Retry block reservation

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During block reservation if we don't have enough blocks left, retry
block reservation with smaller block counts.  This makes sure we try
fallocate and DIO with smaller request size and don't fail early.  The
delayed allocation reservation cannot try with smaller block count. So
retry block reservation to handle temporary disk full conditions.  Also
print free blocks details if we fail block allocation during writepages.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Aneesh Kumar K.V 2008-09-08 23:14:50 -04:00 • committed by Theodore Ts'o

parent a30d542a00

commit 030ba6bc67

3 changed files with 24 additions and 5 deletions

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8

fs/ext4/balloc.c

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14

fs/ext4/inode.c

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7

fs/ext4/mballoc.c

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